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| author | Andrew Trick <atrick@apple.com> | 2011-03-23 22:16:02 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-03-23 22:16:02 +0000 |
| commit | d8fa01fbd7f32e2e1f17c9adb57899baae1d0cfe (patch) | |
| tree | 15094aef1d5dcfe65cefb572e91563f6f9f67905 /test/CodeGen | |
| parent | a8287e322f94ddd66fcb9ae26c4b37e02bd1f796 (diff) | |
| download | external_llvm-d8fa01fbd7f32e2e1f17c9adb57899baae1d0cfe.zip external_llvm-d8fa01fbd7f32e2e1f17c9adb57899baae1d0cfe.tar.gz external_llvm-d8fa01fbd7f32e2e1f17c9adb57899baae1d0cfe.tar.bz2 | |
Reapply Eli's r127852 now that the pre-RA scheduler can spill EFLAGS.
(target-specific branchless method for double-width relational comparisons on x86)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128175 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/long-setcc.ll | 39 | ||||
| -rw-r--r-- | test/CodeGen/X86/sext-i1.ll | 3 |
2 files changed, 30 insertions, 12 deletions
diff --git a/test/CodeGen/X86/long-setcc.ll b/test/CodeGen/X86/long-setcc.ll index e0165fb..0ab8160 100644 --- a/test/CodeGen/X86/long-setcc.ll +++ b/test/CodeGen/X86/long-setcc.ll @@ -1,18 +1,35 @@ -; RUN: llc < %s -march=x86 | grep cmp | count 1 -; RUN: llc < %s -march=x86 | grep shr | count 1 -; RUN: llc < %s -march=x86 | grep xor | count 1 +; RUN: llc < %s -march=x86 | FileCheck %s -define i1 @t1(i64 %x) nounwind { - %B = icmp slt i64 %x, 0 - ret i1 %B +; General case +define i1 @t1(i64 %x, i64 %y) nounwind { +; CHECK: @t1 +; CHECK: subl +; CHECK: sbbl +; CHECK: setl %al + %B = icmp slt i64 %x, %y + ret i1 %B } +; Some special cases define i1 @t2(i64 %x) nounwind { - %tmp = icmp ult i64 %x, 4294967296 - ret i1 %tmp +; CHECK: @t2 +; CHECK: shrl $31, %eax + %B = icmp slt i64 %x, 0 + ret i1 %B } -define i1 @t3(i32 %x) nounwind { - %tmp = icmp ugt i32 %x, -1 - ret i1 %tmp +define i1 @t3(i64 %x) nounwind { +; CHECK: @t3 +; CHECX: cmpl $0 +; CHECX: sete %al + %tmp = icmp ult i64 %x, 4294967296 + ret i1 %tmp +} + +define i1 @t4(i64 %x) nounwind { +; CHECK: @t4 +; CHECX: cmpl $0 +; CHECX: setne %al + %tmp = icmp ugt i64 %x, 4294967295 + ret i1 %tmp } diff --git a/test/CodeGen/X86/sext-i1.ll b/test/CodeGen/X86/sext-i1.ll index 574769b..2604869 100644 --- a/test/CodeGen/X86/sext-i1.ll +++ b/test/CodeGen/X86/sext-i1.ll @@ -39,7 +39,8 @@ entry: ; 32: t3: ; 32: cmpl $1 ; 32: sbbl -; 32: cmpl +; 32: subl +; 32: sbbl ; 32: xorl ; 64: t3: |