mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-14 11:32:34 +00:00
b4dc0233c9
This was done with the following sed invocation to catch label lines demarking function boundaries:
sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll
which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186258 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
1.3 KiB
LLVM
58 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s
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; Reuse the flags value from the add instructions instead of emitting separate
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; testl instructions.
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; Use the flags on the add.
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; CHECK-LABEL: test1:
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; CHECK: addl
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; CHECK-NOT: test
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; CHECK: cmovnsl
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; CHECK: ret
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define i32 @test1(i32* %x, i32 %y, i32 %a, i32 %b) nounwind {
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%tmp2 = load i32* %x, align 4 ; <i32> [#uses=1]
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%tmp4 = add i32 %tmp2, %y ; <i32> [#uses=1]
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%tmp5 = icmp slt i32 %tmp4, 0 ; <i1> [#uses=1]
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%tmp.0 = select i1 %tmp5, i32 %a, i32 %b ; <i32> [#uses=1]
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ret i32 %tmp.0
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}
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declare void @foo(i32)
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; Don't use the flags result of the and here, since the and has no
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; other use. A simple test is better.
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; CHECK-LABEL: test2:
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; CHECK: testb $16, {{%dil|%cl}}
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define void @test2(i32 %x) nounwind {
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%y = and i32 %x, 16
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%t = icmp eq i32 %y, 0
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br i1 %t, label %true, label %false
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true:
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call void @foo(i32 %x)
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ret void
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false:
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ret void
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}
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; Do use the flags result of the and here, since the and has another use.
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; CHECK-LABEL: test3:
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; CHECK: andl $16, %e
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; CHECK-NEXT: jne
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define void @test3(i32 %x) nounwind {
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%y = and i32 %x, 16
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%t = icmp eq i32 %y, 0
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br i1 %t, label %true, label %false
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true:
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call void @foo(i32 %y)
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ret void
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false:
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ret void
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}
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