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author | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
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committer | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
commit | cd749a9c07f1de2fb8affde90537efa4bc3e7c54 (patch) | |
tree | b21f6de4e08b89bb7931806bab798fc2a5e3a686 /test/CodeGen/X86/lea.ll | |
parent | 72621d11de5b873f1695f391eb95f0b336c3d2d4 (diff) | |
download | FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.zip FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.tar.gz |
Update llvm to r84119.
Diffstat (limited to 'test/CodeGen/X86/lea.ll')
-rw-r--r-- | test/CodeGen/X86/lea.ll | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/test/CodeGen/X86/lea.ll b/test/CodeGen/X86/lea.ll index 30a477a..22a9644 100644 --- a/test/CodeGen/X86/lea.ll +++ b/test/CodeGen/X86/lea.ll @@ -1,9 +1,34 @@ -; RUN: llvm-as < %s | llc -march=x86 -; RUN: llvm-as < %s | llc -march=x86 | not grep orl +; RUN: llc < %s -march=x86-64 | FileCheck %s -define i32 @test(i32 %x) { - %tmp1 = shl i32 %x, 3 ; <i32> [#uses=1] - %tmp2 = add i32 %tmp1, 7 ; <i32> [#uses=1] +define i32 @test1(i32 %x) nounwind { + %tmp1 = shl i32 %x, 3 + %tmp2 = add i32 %tmp1, 7 ret i32 %tmp2 +; CHECK: test1: +; CHECK: leal 7(,%rdi,8), %eax } + +; ISel the add of -4 with a neg and use an lea for the rest of the +; arithemtic. +define i32 @test2(i32 %x_offs) nounwind readnone { +entry: + %t0 = icmp sgt i32 %x_offs, 4 + br i1 %t0, label %bb.nph, label %bb2 + +bb.nph: + %tmp = add i32 %x_offs, -5 + %tmp6 = lshr i32 %tmp, 2 + %tmp7 = mul i32 %tmp6, -4 + %tmp8 = add i32 %tmp7, %x_offs + %tmp9 = add i32 %tmp8, -4 + ret i32 %tmp9 + +bb2: + ret i32 %x_offs +; CHECK: test2: +; CHECK: leal -5(%rdi), %eax +; CHECK: andl $-4, %eax +; CHECK: negl %eax +; CHECK: leal -4(%rdi,%rax), %eax +} |