diff --git a/llvm/test/CodeGen/ARM/ssat.ll b/llvm/test/CodeGen/ARM/ssat.ll index a2027435ed291..9d9758b0515dd 100644 --- a/llvm/test/CodeGen/ARM/ssat.ll +++ b/llvm/test/CodeGen/ARM/ssat.ll @@ -1,5 +1,6 @@ -; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V4T -; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V6T2 +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=V4T +; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=V6T2 ; Check for several conditions that should result in SSAT. ; For example, the base test is equivalent to @@ -16,9 +17,25 @@ ; x < -k ? -k : (x > k ? k : x) ; 32-bit base test define i32 @sat_base_32bit(i32 %x) #0 { -; CHECK-LABEL: sat_base_32bit: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_base_32bit: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI0_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: mov r0, #1065353216 +; V4T-NEXT: orr r0, r0, #-1073741824 +; V4T-NEXT: cmn r1, #8388608 +; V4T-NEXT: movgt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI0_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_base_32bit: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i32 %x, 8388607 %saturateUp = select i1 %0, i32 %x, i32 8388607 @@ -30,9 +47,29 @@ entry: ; x < -k ? -k : (x > k ? k : x) ; 16-bit base test define i16 @sat_base_16bit(i16 %x) #0 { -; CHECK-LABEL: sat_base_16bit: -; V6T2: ssat r0, #12, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_base_16bit: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r2, #255 +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: orr r2, r2, #1792 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmp r1, r2 +; V4T-NEXT: movlt r2, r0 +; V4T-NEXT: lsl r0, r2, #16 +; V4T-NEXT: asr r1, r0, #16 +; V4T-NEXT: ldr r0, .LCPI1_0 +; V4T-NEXT: cmn r1, #2048 +; V4T-NEXT: movgt r0, r2 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI1_0: +; V4T-NEXT: .long 4294965248 @ 0xfffff800 +; +; V6T2-LABEL: sat_base_16bit: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #12, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i16 %x, 2047 %saturateUp = select i1 %0, i16 %x, i16 2047 @@ -44,9 +81,22 @@ entry: ; x < -k ? -k : (x > k ? k : x) ; 8-bit base test define i8 @sat_base_8bit(i8 %x) #0 { -; CHECK-LABEL: sat_base_8bit: -; V6T2: ssat r0, #6, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_base_8bit: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: lsl r1, r0, #24 +; V4T-NEXT: asr r1, r1, #24 +; V4T-NEXT: cmp r1, #31 +; V4T-NEXT: movge r0, #31 +; V4T-NEXT: lsl r1, r0, #24 +; V4T-NEXT: asr r1, r1, #24 +; V4T-NEXT: cmn r1, #32 +; V4T-NEXT: mvnle r0, #31 +; V4T-NEXT: bx lr +; +; V6T2-LABEL: sat_base_8bit: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #6, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i8 %x, 31 %saturateUp = select i1 %0, i8 %x, i8 31 @@ -63,9 +113,25 @@ entry: ; x < -k ? -k : (x < k ? x : k) define i32 @sat_lower_upper_1(i32 %x) #0 { -; CHECK-LABEL: sat_lower_upper_1: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_lower_upper_1: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI3_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: mov r0, #1065353216 +; V4T-NEXT: orr r0, r0, #-1073741824 +; V4T-NEXT: cmn r1, #8388608 +; V4T-NEXT: movgt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI3_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_lower_upper_1: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp slt i32 %x, 8388607 %saturateUp = select i1 %cmpUp, i32 %x, i32 8388607 @@ -76,9 +142,25 @@ entry: ; x > -k ? (x > k ? k : x) : -k define i32 @sat_lower_upper_2(i32 %x) #0 { -; CHECK-LABEL: sat_lower_upper_2: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_lower_upper_2: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI4_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: mov r0, #1065353216 +; V4T-NEXT: orr r0, r0, #-1073741824 +; V4T-NEXT: cmn r1, #8388608 +; V4T-NEXT: movgt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI4_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_lower_upper_2: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i32 %x, 8388607 %saturateUp = select i1 %0, i32 %x, i32 8388607 @@ -89,9 +171,26 @@ entry: ; x < k ? (x < -k ? -k : x) : k define i32 @sat_upper_lower_1(i32 %x) #0 { -; CHECK-LABEL: sat_upper_lower_1: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_upper_lower_1: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r1, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r1, r1, #-1073741824 +; V4T-NEXT: movgt r1, r0 +; V4T-NEXT: ldr r0, .LCPI5_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movge r1, r0 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI5_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_upper_lower_1: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, -8388608 %saturateLow = select i1 %0, i32 %x, i32 -8388608 @@ -102,9 +201,26 @@ entry: ; x > k ? k : (x < -k ? -k : x) define i32 @sat_upper_lower_2(i32 %x) #0 { -; CHECK-LABEL: sat_upper_lower_2: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_upper_lower_2: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r1, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r1, r1, #-1073741824 +; V4T-NEXT: movgt r1, r0 +; V4T-NEXT: ldr r0, .LCPI6_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movge r1, r0 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI6_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_upper_lower_2: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, -8388608 %saturateLow = select i1 %0, i32 %x, i32 -8388608 @@ -115,9 +231,26 @@ entry: ; k < x ? k : (x > -k ? x : -k) define i32 @sat_upper_lower_3(i32 %x) #0 { -; CHECK-LABEL: sat_upper_lower_3: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_upper_lower_3: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r1, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r1, r1, #-1073741824 +; V4T-NEXT: movgt r1, r0 +; V4T-NEXT: ldr r0, .LCPI7_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movge r1, r0 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI7_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_upper_lower_3: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %cmpLow = icmp sgt i32 %x, -8388608 %saturateLow = select i1 %cmpLow, i32 %x, i32 -8388608 @@ -133,9 +266,26 @@ entry: ; Check that >= and <= work the same as > and < ; k <= x ? k : (x >= -k ? x : -k) define i32 @sat_le_ge(i32 %x) #0 { -; CHECK-LABEL: sat_le_ge: -; V6T2: ssat r0, #24, r0 -; V4T-NOT: ssat +; V4T-LABEL: sat_le_ge: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r1, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r1, r1, #-1073741824 +; V4T-NEXT: movgt r1, r0 +; V4T-NEXT: ldr r0, .LCPI8_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movge r1, r0 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI8_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: sat_le_ge: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: ssat r0, #24, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, -8388608 %saturateLow = select i1 %0, i32 %x, i32 -8388608 @@ -152,8 +302,33 @@ entry: ; x > k ? k : (x > -k ? -k : x) ; First condition upper-saturates, second doesn't lower-saturate. define i32 @no_sat_missing_lower(i32 %x) #0 { -; CHECK-LABEL: no_sat_missing_lower -; CHECK-NOT: ssat +; V4T-LABEL: no_sat_missing_lower: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r2, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r2, r2, #-1073741824 +; V4T-NEXT: ldr r1, .LCPI9_0 +; V4T-NEXT: movlt r2, r0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: movlt r1, r2 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI9_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_sat_missing_lower: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: movw r1, #0 +; V6T2-NEXT: cmn r0, #8388608 +; V6T2-NEXT: movt r1, #65408 +; V6T2-NEXT: movlt r1, r0 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %0 = icmp slt i32 %x, -8388608 @@ -165,8 +340,35 @@ entry: ; x < k ? k : (x < -k ? -k : x) ; Second condition lower-saturates, first doesn't upper-saturate. define i32 @no_sat_missing_upper(i32 %x) #0 { -; CHECK-LABEL: no_sat_missing_upper: -; CHECK-NOT: ssat +; V4T-LABEL: no_sat_missing_upper: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r1, #1065353216 +; V4T-NEXT: ldr r2, .LCPI10_0 +; V4T-NEXT: orr r1, r1, #-1073741824 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: movgt r1, r0 +; V4T-NEXT: cmp r0, r2 +; V4T-NEXT: movlt r1, r2 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI10_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_sat_missing_upper: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: movw r1, #0 +; V6T2-NEXT: movw r2, #65535 +; V6T2-NEXT: movt r1, #65408 +; V6T2-NEXT: cmn r0, #8388608 +; V6T2-NEXT: movgt r1, r0 +; V6T2-NEXT: movt r2, #127 +; V6T2-NEXT: cmp r0, r2 +; V6T2-NEXT: movwlt r1, #65535 +; V6T2-NEXT: movtlt r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp slt i32 %x, 8388607 %0 = icmp sgt i32 %x, -8388608 @@ -177,8 +379,35 @@ entry: ; Lower constant is different in the select and in the compare define i32 @no_sat_incorrect_constant(i32 %x) #0 { -; CHECK-LABEL: no_sat_incorrect_constant: -; CHECK-NOT: ssat +; V4T-LABEL: no_sat_incorrect_constant: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r2, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r2, r2, #-1073741824 +; V4T-NEXT: mov r1, r0 +; V4T-NEXT: orrlt r1, r2, #1 +; V4T-NEXT: ldr r2, .LCPI11_0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: movge r1, r2 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI11_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_sat_incorrect_constant: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: movw r2, #0 +; V6T2-NEXT: cmn r0, #8388608 +; V6T2-NEXT: mov r1, r0 +; V6T2-NEXT: movt r2, #65408 +; V6T2-NEXT: orrlt r1, r2, #1 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %cmpLow = icmp slt i32 %x, -8388608 @@ -189,8 +418,35 @@ entry: ; The interval is not [k, ~k] define i32 @no_sat_incorrect_interval(i32 %x) #0 { -; CHECK-LABEL: no_sat_incorrect_interval: -; CHECK-NOT: ssat +; V4T-LABEL: no_sat_incorrect_interval: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI12_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movgt r1, r0 +; V4T-NEXT: ldr r0, .LCPI12_1 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movge r1, r0 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI12_0: +; V4T-NEXT: .long 4275878552 @ 0xfedcba98 +; V4T-NEXT: .LCPI12_1: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_sat_incorrect_interval: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: movw r1, #47768 +; V6T2-NEXT: movt r1, #65244 +; V6T2-NEXT: cmp r0, r1 +; V6T2-NEXT: movgt r1, r0 +; V6T2-NEXT: movw r0, #65535 +; V6T2-NEXT: movt r0, #127 +; V6T2-NEXT: cmp r1, r0 +; V6T2-NEXT: movge r1, r0 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, -19088744 %saturateLow = select i1 %0, i32 %x, i32 -19088744 @@ -201,8 +457,32 @@ entry: ; The returned value (y) is not the same as the tested value (x). define i32 @no_sat_incorrect_return(i32 %x, i32 %y) #0 { -; CHECK-LABEL: no_sat_incorrect_return: -; CHECK-NOT: ssat +; V4T-LABEL: no_sat_incorrect_return: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r2, #1065353216 +; V4T-NEXT: cmn r0, #8388608 +; V4T-NEXT: orr r2, r2, #-1073741824 +; V4T-NEXT: movge r2, r1 +; V4T-NEXT: ldr r1, .LCPI13_0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: movlt r1, r2 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI13_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_sat_incorrect_return: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: cmn r0, #8388608 +; V6T2-NEXT: movwlt r1, #0 +; V6T2-NEXT: movtlt r1, #65408 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %cmpLow = icmp slt i32 %x, -8388608 @@ -214,8 +494,33 @@ entry: ; One of the values in a compare (y) is not the same as the rest ; of the compare and select values (x). define i32 @no_sat_incorrect_compare(i32 %x, i32 %y) #0 { -; CHECK-LABEL: no_sat_incorrect_compare: -; CHECK-NOT: ssat +; V4T-LABEL: no_sat_incorrect_compare: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: mov r2, #1065353216 +; V4T-NEXT: cmn r1, #8388608 +; V4T-NEXT: orr r2, r2, #-1073741824 +; V4T-NEXT: ldr r1, .LCPI14_0 +; V4T-NEXT: movge r2, r0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: movlt r1, r2 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI14_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_sat_incorrect_compare: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: cmn r1, #8388608 +; V6T2-NEXT: mov r1, r0 +; V6T2-NEXT: movwlt r1, #0 +; V6T2-NEXT: movtlt r1, #65408 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %cmpLow = icmp slt i32 %y, -8388608 @@ -223,3 +528,102 @@ entry: %saturateUp = select i1 %cmpUp, i32 8388607, i32 %saturateLow ret i32 %saturateUp } + +define void @extended(i32 %xx, i16 signext %y, i8* nocapture %z) { +; V4T-LABEL: extended: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: add r0, r1, r0, lsr #16 +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmp r1, #127 +; V4T-NEXT: movge r0, #127 +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmn r1, #128 +; V4T-NEXT: mvnle r0, #127 +; V4T-NEXT: strb r0, [r2] +; V4T-NEXT: bx lr +; +; V6T2-LABEL: extended: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: add r0, r1, r0, lsr #16 +; V6T2-NEXT: ssat r0, #8, r0 +; V6T2-NEXT: strb r0, [r2] +; V6T2-NEXT: bx lr +entry: + %0 = lshr i32 %xx, 16 + %1 = trunc i32 %0 to i16 + %conv3 = add i16 %1, %y + %cmp.i = icmp slt i16 %conv3, 127 + %cond.i = select i1 %cmp.i, i16 %conv3, i16 127 + %cmp.i11 = icmp sgt i16 %cond.i, -128 + %cond.i12 = select i1 %cmp.i11, i16 %cond.i, i16 -128 + %conv5 = trunc i16 %cond.i12 to i8 + store i8 %conv5, i8* %z, align 1 + ret void +} + + +define i32 @formulated_valid(i32 %a) { +; V4T-LABEL: formulated_valid: +; V4T: @ %bb.0: +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmp r1, #127 +; V4T-NEXT: movge r0, #127 +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmn r1, #128 +; V4T-NEXT: mov r1, #255 +; V4T-NEXT: mvnle r0, #127 +; V4T-NEXT: orr r1, r1, #65280 +; V4T-NEXT: and r0, r0, r1 +; V4T-NEXT: bx lr +; +; V6T2-LABEL: formulated_valid: +; V6T2: @ %bb.0: +; V6T2-NEXT: ssat r0, #8, r0 +; V6T2-NEXT: uxth r0, r0 +; V6T2-NEXT: bx lr + %x1 = trunc i32 %a to i16 + %x2 = sext i16 %x1 to i32 + %c1 = icmp slt i32 %x2, 127 + %s1 = select i1 %c1, i32 %a, i32 127 + %y1 = trunc i32 %s1 to i16 + %y2 = sext i16 %y1 to i32 + %c2 = icmp sgt i32 %y2, -128 + %s2 = select i1 %c2, i32 %s1, i32 -128 + %r = and i32 %s2, 65535 + ret i32 %r +} + +define i32 @formulated_invalid(i32 %a) { +; V4T-LABEL: formulated_invalid: +; V4T: @ %bb.0: +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmp r1, #127 +; V4T-NEXT: movge r0, #127 +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r1, r1, #16 +; V4T-NEXT: cmn r1, #128 +; V4T-NEXT: mvnle r0, #127 +; V4T-NEXT: bic r0, r0, #-16777216 +; V4T-NEXT: bx lr +; +; V6T2-LABEL: formulated_invalid: +; V6T2: @ %bb.0: +; V6T2-NEXT: ssat r0, #8, r0 +; V6T2-NEXT: bic r0, r0, #-16777216 +; V6T2-NEXT: bx lr + %x1 = trunc i32 %a to i16 + %x2 = sext i16 %x1 to i32 + %c1 = icmp slt i32 %x2, 127 + %s1 = select i1 %c1, i32 %a, i32 127 + %y1 = trunc i32 %s1 to i16 + %y2 = sext i16 %y1 to i32 + %c2 = icmp sgt i32 %y2, -128 + %s2 = select i1 %c2, i32 %s1, i32 -128 + %r = and i32 %s2, 16777215 + ret i32 %r +} diff --git a/llvm/test/CodeGen/ARM/usat.ll b/llvm/test/CodeGen/ARM/usat.ll index ba4e0dd037649..ab508fc0e0323 100644 --- a/llvm/test/CodeGen/ARM/usat.ll +++ b/llvm/test/CodeGen/ARM/usat.ll @@ -1,6 +1,7 @@ -; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V4T -; RUN: llc -mtriple=armv6-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V6 -; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=V6T2 +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=armv4t-eabi %s -o - | FileCheck %s --check-prefix=V4T +; RUN: llc -mtriple=armv6-eabi %s -o - | FileCheck %s --check-prefix=V6 +; RUN: llc -mtriple=armv6t2-eabi %s -o - | FileCheck %s --check-prefix=V6T2 ; Check for several conditions that should result in USAT. ; For example, the base test is equivalent to @@ -17,10 +18,27 @@ ; x < 0 ? 0 : (x > k ? k : x) ; 32-bit base test define i32 @unsigned_sat_base_32bit(i32 %x) #0 { -; CHECK-LABEL: unsigned_sat_base_32bit: -; V6: usat r0, #23, r0 -; V6T2: usat r0, #23, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_base_32bit: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI0_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: bic r0, r1, r1, asr #31 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI0_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: unsigned_sat_base_32bit: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #23, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_base_32bit: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #23, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i32 %x, 8388607 %saturateUp = select i1 %0, i32 %x, i32 8388607 @@ -32,10 +50,30 @@ entry: ; x < 0 ? 0 : (x > k ? k : x) ; 16-bit base test define i16 @unsigned_sat_base_16bit(i16 %x) #0 { -; CHECK-LABEL: unsigned_sat_base_16bit: -; V6: usat r0, #11, r0 -; V6T2: usat r0, #11, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_base_16bit: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: lsl r1, r0, #16 +; V4T-NEXT: asr r2, r1, #16 +; V4T-NEXT: mov r1, #255 +; V4T-NEXT: orr r1, r1, #1792 +; V4T-NEXT: cmp r2, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: lsl r0, r1, #16 +; V4T-NEXT: asr r0, r0, #16 +; V4T-NEXT: cmp r0, #0 +; V4T-NEXT: movle r1, #0 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; +; V6-LABEL: unsigned_sat_base_16bit: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #11, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_base_16bit: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #11, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i16 %x, 2047 %saturateUp = select i1 %0, i16 %x, i16 2047 @@ -47,10 +85,27 @@ entry: ; x < 0 ? 0 : (x > k ? k : x) ; 8-bit base test define i8 @unsigned_sat_base_8bit(i8 %x) #0 { -; CHECK-LABEL: unsigned_sat_base_8bit: -; V6: usat r0, #5, r0 -; V6T2: usat r0, #5, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_base_8bit: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: lsl r1, r0, #24 +; V4T-NEXT: asr r1, r1, #24 +; V4T-NEXT: cmp r1, #31 +; V4T-NEXT: movge r0, #31 +; V4T-NEXT: lsl r1, r0, #24 +; V4T-NEXT: asr r1, r1, #24 +; V4T-NEXT: cmp r1, #0 +; V4T-NEXT: movle r0, #0 +; V4T-NEXT: bx lr +; +; V6-LABEL: unsigned_sat_base_8bit: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #5, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_base_8bit: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #5, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i8 %x, 31 %saturateUp = select i1 %0, i8 %x, i8 31 @@ -66,10 +121,27 @@ entry: ; ; x < 0 ? 0 : (x < k ? x : k) define i32 @unsigned_sat_lower_upper_1(i32 %x) #0 { -; CHECK-LABEL: unsigned_sat_lower_upper_1: -; V6: usat r0, #23, r0 -; V6T2: usat r0, #23, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_lower_upper_1: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI3_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: bic r0, r1, r1, asr #31 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI3_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: unsigned_sat_lower_upper_1: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #23, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_lower_upper_1: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #23, r0 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp slt i32 %x, 8388607 %saturateUp = select i1 %cmpUp, i32 %x, i32 8388607 @@ -80,10 +152,27 @@ entry: ; x > 0 ? (x > k ? k : x) : 0 define i32 @unsigned_sat_lower_upper_2(i32 %x) #0 { -; CHECK-LABEL: unsigned_sat_lower_upper_2: -; V6: usat r0, #23, r0 -; V6T2: usat r0, #23, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_lower_upper_2: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI4_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movlt r1, r0 +; V4T-NEXT: bic r0, r1, r1, asr #31 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI4_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: unsigned_sat_lower_upper_2: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #23, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_lower_upper_2: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #23, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp slt i32 %x, 8388607 %saturateUp = select i1 %0, i32 %x, i32 8388607 @@ -94,10 +183,27 @@ entry: ; x < k ? (x < 0 ? 0 : x) : k define i32 @unsigned_sat_upper_lower_1(i32 %x) #0 { -; CHECK-LABEL: unsigned_sat_upper_lower_1: -; V6: usat r0, #23, r0 -; V6T2: usat r0, #23, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_upper_lower_1: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: bic r1, r0, r0, asr #31 +; V4T-NEXT: ldr r0, .LCPI5_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movlt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI5_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: unsigned_sat_upper_lower_1: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #23, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_upper_lower_1: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #23, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, 0 %saturateLow = select i1 %0, i32 %x, i32 0 @@ -108,10 +214,27 @@ entry: ; x > k ? k : (x < 0 ? 0 : x) define i32 @unsigned_sat_upper_lower_2(i32 %x) #0 { -; CHECK-LABEL: unsigned_sat_upper_lower_2: -; V6: usat r0, #23, r0 -; V6T2: usat r0, #23, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_upper_lower_2: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: bic r1, r0, r0, asr #31 +; V4T-NEXT: ldr r0, .LCPI6_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movlt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI6_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: unsigned_sat_upper_lower_2: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #23, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_upper_lower_2: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #23, r0 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, 0 %saturateLow = select i1 %0, i32 %x, i32 0 @@ -122,10 +245,27 @@ entry: ; k < x ? k : (x > 0 ? x : 0) define i32 @unsigned_sat_upper_lower_3(i32 %x) #0 { -; CHECK-LABEL: unsigned_sat_upper_lower_3: -; V6: usat r0, #23, r0 -; V6T2: usat r0, #23, r0 -; V4T-NOT: usat +; V4T-LABEL: unsigned_sat_upper_lower_3: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: bic r1, r0, r0, asr #31 +; V4T-NEXT: ldr r0, .LCPI7_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movlt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI7_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: unsigned_sat_upper_lower_3: +; V6: @ %bb.0: @ %entry +; V6-NEXT: usat r0, #23, r0 +; V6-NEXT: bx lr +; +; V6T2-LABEL: unsigned_sat_upper_lower_3: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: usat r0, #23, r0 +; V6T2-NEXT: bx lr entry: %cmpLow = icmp sgt i32 %x, 0 %saturateLow = select i1 %cmpLow, i32 %x, i32 0 @@ -141,8 +281,38 @@ entry: ; x > k ? k : (x > 0 ? 0 : x) ; First condition upper-saturates, second doesn't lower-saturate. define i32 @no_unsigned_sat_missing_lower(i32 %x) #0 { -; CHECK-LABEL: no_unsigned_sat_missing_lower -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_missing_lower: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI8_0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: andlt r1, r0, r0, asr #31 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI8_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: no_unsigned_sat_missing_lower: +; V6: @ %bb.0: @ %entry +; V6-NEXT: ldr r1, .LCPI8_0 +; V6-NEXT: cmp r0, #8388608 +; V6-NEXT: andlt r1, r0, r0, asr #31 +; V6-NEXT: mov r0, r1 +; V6-NEXT: bx lr +; V6-NEXT: .p2align 2 +; V6-NEXT: @ %bb.1: +; V6-NEXT: .LCPI8_0: +; V6-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_unsigned_sat_missing_lower: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: and r1, r0, r0, asr #31 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %0 = icmp slt i32 %x, 0 @@ -154,8 +324,40 @@ entry: ; x < k ? k : (x < 0 ? 0 : x) ; Second condition lower-saturates, first doesn't upper-saturate. define i32 @no_unsigned_sat_missing_upper(i32 %x) #0 { -; CHECK-LABEL: no_unsigned_sat_missing_upper: -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_missing_upper: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI9_0 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: bicge r1, r0, r0, asr #31 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI9_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: no_unsigned_sat_missing_upper: +; V6: @ %bb.0: @ %entry +; V6-NEXT: ldr r1, .LCPI9_0 +; V6-NEXT: cmp r0, r1 +; V6-NEXT: bicge r1, r0, r0, asr #31 +; V6-NEXT: mov r0, r1 +; V6-NEXT: bx lr +; V6-NEXT: .p2align 2 +; V6-NEXT: @ %bb.1: +; V6-NEXT: .LCPI9_0: +; V6-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_unsigned_sat_missing_upper: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: movw r2, #65535 +; V6T2-NEXT: bic r1, r0, r0, asr #31 +; V6T2-NEXT: movt r2, #127 +; V6T2-NEXT: cmp r0, r2 +; V6T2-NEXT: movwlt r1, #65535 +; V6T2-NEXT: movtlt r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp slt i32 %x, 8388607 %0 = icmp sgt i32 %x, 0 @@ -166,8 +368,38 @@ entry: ; Lower constant is different in the select and in the compare define i32 @no_unsigned_sat_incorrect_constant(i32 %x) #0 { -; CHECK-LABEL: no_unsigned_sat_incorrect_constant: -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_incorrect_constant: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: orr r1, r0, r0, asr #31 +; V4T-NEXT: ldr r0, .LCPI10_0 +; V4T-NEXT: cmp r1, r0 +; V4T-NEXT: movlt r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI10_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: no_unsigned_sat_incorrect_constant: +; V6: @ %bb.0: @ %entry +; V6-NEXT: orr r1, r0, r0, asr #31 +; V6-NEXT: ldr r0, .LCPI10_0 +; V6-NEXT: cmp r1, r0 +; V6-NEXT: movlt r0, r1 +; V6-NEXT: bx lr +; V6-NEXT: .p2align 2 +; V6-NEXT: @ %bb.1: +; V6-NEXT: .LCPI10_0: +; V6-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_unsigned_sat_incorrect_constant: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: orr r1, r0, r0, asr #31 +; V6T2-NEXT: movw r0, #65535 +; V6T2-NEXT: movt r0, #127 +; V6T2-NEXT: cmp r1, r0 +; V6T2-NEXT: movlt r0, r1 +; V6T2-NEXT: bx lr entry: %cmpLow.inv = icmp sgt i32 %x, -1 %saturateLow = select i1 %cmpLow.inv, i32 %x, i32 -1 @@ -178,8 +410,32 @@ entry: ; The interval is [0, k] but k+1 is not a power of 2 define i32 @no_unsigned_sat_incorrect_constant2(i32 %x) #0 { -; CHECK-LABEL: no_unsigned_sat_incorrect_constant2: -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_incorrect_constant2: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: bic r1, r0, r0, asr #31 +; V4T-NEXT: mov r0, #1 +; V4T-NEXT: orr r0, r0, #8388608 +; V4T-NEXT: cmp r1, #8388608 +; V4T-NEXT: movle r0, r1 +; V4T-NEXT: bx lr +; +; V6-LABEL: no_unsigned_sat_incorrect_constant2: +; V6: @ %bb.0: @ %entry +; V6-NEXT: bic r1, r0, r0, asr #31 +; V6-NEXT: mov r0, #1 +; V6-NEXT: orr r0, r0, #8388608 +; V6-NEXT: cmp r1, #8388608 +; V6-NEXT: movle r0, r1 +; V6-NEXT: bx lr +; +; V6T2-LABEL: no_unsigned_sat_incorrect_constant2: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: bic r1, r0, r0, asr #31 +; V6T2-NEXT: movw r0, #1 +; V6T2-NEXT: movt r0, #128 +; V6T2-NEXT: cmp r1, #8388608 +; V6T2-NEXT: movle r0, r1 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, 0 %saturateLow = select i1 %0, i32 %x, i32 0 @@ -190,8 +446,41 @@ entry: ; The interval is not [0, k] define i32 @no_unsigned_sat_incorrect_interval(i32 %x) #0 { -; CHECK-LABEL: no_unsigned_sat_incorrect_interval: -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_incorrect_interval: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r1, .LCPI12_0 +; V4T-NEXT: cmn r0, #4 +; V4T-NEXT: mvnle r0, #3 +; V4T-NEXT: cmp r0, r1 +; V4T-NEXT: movge r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI12_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: no_unsigned_sat_incorrect_interval: +; V6: @ %bb.0: @ %entry +; V6-NEXT: ldr r1, .LCPI12_0 +; V6-NEXT: cmn r0, #4 +; V6-NEXT: mvnle r0, #3 +; V6-NEXT: cmp r0, r1 +; V6-NEXT: movge r0, r1 +; V6-NEXT: bx lr +; V6-NEXT: .p2align 2 +; V6-NEXT: @ %bb.1: +; V6-NEXT: .LCPI12_0: +; V6-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_unsigned_sat_incorrect_interval: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: cmn r0, #4 +; V6T2-NEXT: movw r1, #65535 +; V6T2-NEXT: mvnle r0, #3 +; V6T2-NEXT: movt r1, #127 +; V6T2-NEXT: cmp r0, r1 +; V6T2-NEXT: movge r0, r1 +; V6T2-NEXT: bx lr entry: %0 = icmp sgt i32 %x, -4 %saturateLow = select i1 %0, i32 %x, i32 -4 @@ -202,8 +491,43 @@ entry: ; The returned value (y) is not the same as the tested value (x). define i32 @no_unsigned_sat_incorrect_return(i32 %x, i32 %y) #0 { -; CHECK-LABEL: no_unsigned_sat_incorrect_return: -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_incorrect_return: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: cmp r0, #0 +; V4T-NEXT: ldr r2, .LCPI13_0 +; V4T-NEXT: movmi r1, #0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: movlt r2, r1 +; V4T-NEXT: mov r0, r2 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI13_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: no_unsigned_sat_incorrect_return: +; V6: @ %bb.0: @ %entry +; V6-NEXT: cmp r0, #0 +; V6-NEXT: ldr r2, .LCPI13_0 +; V6-NEXT: movmi r1, #0 +; V6-NEXT: cmp r0, #8388608 +; V6-NEXT: movlt r2, r1 +; V6-NEXT: mov r0, r2 +; V6-NEXT: bx lr +; V6-NEXT: .p2align 2 +; V6-NEXT: @ %bb.1: +; V6-NEXT: .LCPI13_0: +; V6-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_unsigned_sat_incorrect_return: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: cmp r0, #0 +; V6T2-NEXT: movwmi r1, #0 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %cmpLow = icmp slt i32 %x, 0 @@ -215,8 +539,46 @@ entry: ; One of the values in a compare (y) is not the same as the rest ; of the compare and select values (x). define i32 @no_unsigned_sat_incorrect_compare(i32 %x, i32 %y) #0 { -; CHECK-LABEL: no_unsigned_sat_incorrect_compare: -; CHECK-NOT: usat +; V4T-LABEL: no_unsigned_sat_incorrect_compare: +; V4T: @ %bb.0: @ %entry +; V4T-NEXT: ldr r2, .LCPI14_0 +; V4T-NEXT: cmp r1, #0 +; V4T-NEXT: mov r1, r0 +; V4T-NEXT: movmi r1, #0 +; V4T-NEXT: cmp r0, #8388608 +; V4T-NEXT: movge r1, r2 +; V4T-NEXT: mov r0, r1 +; V4T-NEXT: bx lr +; V4T-NEXT: .p2align 2 +; V4T-NEXT: @ %bb.1: +; V4T-NEXT: .LCPI14_0: +; V4T-NEXT: .long 8388607 @ 0x7fffff +; +; V6-LABEL: no_unsigned_sat_incorrect_compare: +; V6: @ %bb.0: @ %entry +; V6-NEXT: ldr r2, .LCPI14_0 +; V6-NEXT: cmp r1, #0 +; V6-NEXT: mov r1, r0 +; V6-NEXT: movmi r1, #0 +; V6-NEXT: cmp r0, #8388608 +; V6-NEXT: movge r1, r2 +; V6-NEXT: mov r0, r1 +; V6-NEXT: bx lr +; V6-NEXT: .p2align 2 +; V6-NEXT: @ %bb.1: +; V6-NEXT: .LCPI14_0: +; V6-NEXT: .long 8388607 @ 0x7fffff +; +; V6T2-LABEL: no_unsigned_sat_incorrect_compare: +; V6T2: @ %bb.0: @ %entry +; V6T2-NEXT: cmp r1, #0 +; V6T2-NEXT: mov r1, r0 +; V6T2-NEXT: movwmi r1, #0 +; V6T2-NEXT: cmp r0, #8388608 +; V6T2-NEXT: movwge r1, #65535 +; V6T2-NEXT: movtge r1, #127 +; V6T2-NEXT: mov r0, r1 +; V6T2-NEXT: bx lr entry: %cmpUp = icmp sgt i32 %x, 8388607 %cmpLow = icmp slt i32 %y, 0