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[AArch64] Expand testing of zero cycle zeroing
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Make sure that r321824 doesn't change zeroing.

Differential revision: https://reviews.llvm.org/D42089

llvm-svn: 323816
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Evandro Menezes committed Jan 30, 2018
1 parent 1c8f53f commit b7d1729
Showing 1 changed file with 29 additions and 34 deletions.
63 changes: 29 additions & 34 deletions llvm/test/CodeGen/AArch64/arm64-zero-cycle-zeroing.ll
Original file line number Diff line number Diff line change
@@ -1,36 +1,39 @@
; RUN: llc -mtriple=arm64-apple-ios -mcpu=cyclone < %s | FileCheck %s -check-prefix=CYCLONE --check-prefix=ALL
; RUN: llc -mtriple=aarch64-gnu-linux -mcpu=kryo < %s | FileCheck %s -check-prefix=KRYO --check-prefix=ALL
; RUN: llc -mtriple=aarch64-gnu-linux -mcpu=falkor < %s | FileCheck %s -check-prefix=FALKOR --check-prefix=ALL
; RUN: llc -mtriple=arm64-apple-ios -mcpu=cyclone < %s | FileCheck %s -check-prefixes=ALL,CYCLONE
; RUN: llc -mtriple=aarch64-gnu-linux -mcpu=exynos-m1 < %s | FileCheck %s -check-prefixes=ALL,OTHERS
; RUN: llc -mtriple=aarch64-gnu-linux -mcpu=exynos-m3 < %s | FileCheck %s -check-prefixes=ALL,OTHERS
; RUN: llc -mtriple=aarch64-gnu-linux -mcpu=kryo < %s | FileCheck %s -check-prefixes=ALL,OTHERS
; RUN: llc -mtriple=aarch64-gnu-linux -mcpu=falkor < %s | FileCheck %s -check-prefixes=ALL,OTHERS

; rdar://11481771
; rdar://13713797

declare void @bar(half, float, double, <2 x double>)
declare void @bari(i32, i32)
declare void @barl(i64, i64)
declare void @barf(float, float)

define void @t1() nounwind ssp {
entry:
; ALL-LABEL: t1:
; ALL-NOT: fmov
; CYCLONE: fmov d0, xzr
; CYCLONE: fmov d1, xzr
; CYCLONE: fmov h0, wzr
; CYCLONE: fmov s1, wzr
; CYCLONE: fmov d2, xzr
; CYCLONE: fmov d3, xzr
; KRYO: movi v0.2d, #0000000000000000
; KRYO: movi v1.2d, #0000000000000000
; KRYO: movi v2.2d, #0000000000000000
; KRYO: movi v3.2d, #0000000000000000
; FALKOR: movi v0.2d, #0000000000000000
; FALKOR: movi v1.2d, #0000000000000000
; FALKOR: movi v2.2d, #0000000000000000
; FALKOR: movi v3.2d, #0000000000000000
tail call void @bar(double 0.000000e+00, double 0.000000e+00, double 0.000000e+00, double 0.000000e+00) nounwind
; CYCLONE: movi.16b v3, #0
; OTHERS: movi v{{[0-3]+}}.2d, #0000000000000000
; OTHERS: movi v{{[0-3]+}}.2d, #0000000000000000
; OTHERS: movi v{{[0-3]+}}.2d, #0000000000000000
; OTHERS: movi v{{[0-3]+}}.2d, #0000000000000000
tail call void @bar(half 0.000000e+00, float 0.000000e+00, double 0.000000e+00, <2 x double> <double 0.000000e+00, double 0.000000e+00>) nounwind
ret void
}

define void @t2() nounwind ssp {
entry:
; ALL-LABEL: t2:
; ALL-NOT: mov w0, wzr
; ALL: mov w0, #0
; ALL: mov w1, #0
; ALL: mov w{{[0-3]+}}, #0
; ALL: mov w{{[0-3]+}}, #0
tail call void @bari(i32 0, i32 0) nounwind
ret void
}
Expand All @@ -39,35 +42,28 @@ define void @t3() nounwind ssp {
entry:
; ALL-LABEL: t3:
; ALL-NOT: mov x0, xzr
; ALL: mov x0, #0
; ALL: mov x1, #0
; ALL: mov x{{[0-3]+}}, #0
; ALL: mov x{{[0-3]+}}, #0
tail call void @barl(i64 0, i64 0) nounwind
ret void
}

define void @t4() nounwind ssp {
; ALL-LABEL: t4:
; ALL-NOT: fmov
; CYCLONE: fmov s0, wzr
; CYCLONE: fmov s1, wzr
; KRYO: movi v0.2d, #0000000000000000
; KRYO: movi v1.2d, #0000000000000000
; FALKOR: movi v0.2d, #0000000000000000
; FALKOR: movi v1.2d, #0000000000000000
; CYCLONE: fmov s{{[0-3]+}}, wzr
; CYCLONE: fmov s{{[0-3]+}}, wzr
; OTHERS: movi v{{[0-3]+}}.2d, #0000000000000000
; OTHERS: movi v{{[0-3]+}}.2d, #0000000000000000
tail call void @barf(float 0.000000e+00, float 0.000000e+00) nounwind
ret void
}

declare void @bar(double, double, double, double)
declare void @bari(i32, i32)
declare void @barl(i64, i64)
declare void @barf(float, float)

; We used to produce spills+reloads for a Q register with zero cycle zeroing
; enabled.
; ALL-LABEL: foo:
; ALL-NOT: str {{q[0-9]+}}
; ALL-NOT: ldr {{q[0-9]+}}
; ALL-NOT: str q{{[0-9]+}}
; ALL-NOT: ldr q{{[0-9]+}}
define double @foo(i32 %n) {
entry:
br label %for.body
Expand All @@ -90,8 +86,7 @@ for.end:
define <2 x i64> @t6() {
; ALL-LABEL: t6:
; CYCLONE: movi.16b v0, #0
; KRYO: movi v0.2d, #0000000000000000
; FALKOR: movi v0.2d, #0000000000000000
; OTHERS: movi v0.2d, #0000000000000000
ret <2 x i64> zeroinitializer
}

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