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------------------------------------------------------------------------ r373397 | ctopper | 2019-10-01 14:55:55 -0700 (Tue, 01 Oct 2019) | 8 lines [X86] convertToThreeAddress, make sure second operand of SUB32ri is really an immediate before calling getImm(). It might be a symbol instead. We can't fold those since we can't negate them. Similar for other SUB with immediates. Fixes PR43529. ------------------------------------------------------------------------
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | ||
; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s | ||
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define i32 @a() nounwind { | ||
; CHECK-LABEL: a: | ||
; CHECK: # %bb.0: # %entry | ||
; CHECK-NEXT: pushl %esi | ||
; CHECK-NEXT: subl $8, %esp | ||
; CHECK-NEXT: leal {{[0-9]+}}(%esp), %esi | ||
; CHECK-NEXT: movl %esi, %eax | ||
; CHECK-NEXT: subl $a, %eax | ||
; CHECK-NEXT: calll d | ||
; CHECK-NEXT: cmpl $a, %esi | ||
; CHECK-NEXT: jbe .LBB0_2 | ||
; CHECK-NEXT: .p2align 4, 0x90 | ||
; CHECK-NEXT: .LBB0_1: # %for.cond | ||
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 | ||
; CHECK-NEXT: jmp .LBB0_1 | ||
; CHECK-NEXT: .LBB0_2: # %for.end.split | ||
; CHECK-NEXT: addl $8, %esp | ||
; CHECK-NEXT: popl %esi | ||
; CHECK-NEXT: retl | ||
entry: | ||
%b = alloca i32, align 4 | ||
%0 = bitcast i32* %b to i8* | ||
%1 = ptrtoint i32* %b to i32 | ||
%sub = sub nsw i32 %1, ptrtoint (i32 ()* @a to i32) | ||
%call = call i32 bitcast (i32 (...)* @d to i32 (i32)*)(i32 inreg %sub) | ||
%cmp = icmp ugt i32* %b, bitcast (i32 ()* @a to i32*) | ||
br i1 %cmp, label %for.cond, label %for.end.split | ||
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for.cond: ; preds = %entry, %for.cond | ||
br label %for.cond | ||
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for.end.split: ; preds = %entry | ||
ret i32 undef | ||
} | ||
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declare i32 @d(...) |