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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-28 02:08:50 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-28 02:08:50 +0000 |
| commit | 2129a0f6773b3625ddc5d541fe454a9a923cec2a (patch) | |
| tree | c61a1c946d40030eeba132f3a885f2678818fce4 /test/CodeGen/ARM | |
| parent | 33177f591a46e2a476fe8ab49f7055532b48fd40 (diff) | |
| download | external_llvm-2129a0f6773b3625ddc5d541fe454a9a923cec2a.zip external_llvm-2129a0f6773b3625ddc5d541fe454a9a923cec2a.tar.gz external_llvm-2129a0f6773b3625ddc5d541fe454a9a923cec2a.tar.bz2 | |
Handle regmasks in MachineCSE.
Don't attempt to extend physreg live ranges across calls.
<rdar://problem/10942095>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151610 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
| -rw-r--r-- | test/CodeGen/ARM/cse-call.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/cse-call.ll b/test/CodeGen/ARM/cse-call.ll new file mode 100644 index 0000000..eff5de5 --- /dev/null +++ b/test/CodeGen/ARM/cse-call.ll @@ -0,0 +1,31 @@ +; RUN: llc < %s -mcpu=arm1136jf-s -verify-machineinstrs | FileCheck %s +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32" +target triple = "armv6-apple-ios0.0.0" + +; Don't CSE a cmp across a call that clobbers CPSR. +; +; CHECK: cmp +; CHECK: S_trimzeros +; CHECK: cmp +; CHECK: strlen + +@F_floatmul.man1 = external global [200 x i8], align 1 +@F_floatmul.man2 = external global [200 x i8], align 1 + +declare i32 @strlen(i8* nocapture) nounwind readonly +declare void @S_trimzeros(...) + +define i8* @F_floatmul(i8* %f1, i8* %f2) nounwind ssp { +entry: + br i1 undef, label %while.end42, label %while.body37 + +while.body37: ; preds = %while.body37, %entry + br i1 false, label %while.end42, label %while.body37 + +while.end42: ; preds = %while.body37, %entry + %. = select i1 undef, i8* getelementptr inbounds ([200 x i8]* @F_floatmul.man1, i32 0, i32 0), i8* getelementptr inbounds ([200 x i8]* @F_floatmul.man2, i32 0, i32 0) + %.92 = select i1 undef, i8* getelementptr inbounds ([200 x i8]* @F_floatmul.man2, i32 0, i32 0), i8* getelementptr inbounds ([200 x i8]* @F_floatmul.man1, i32 0, i32 0) + tail call void bitcast (void (...)* @S_trimzeros to void (i8*)*)(i8* %.92) nounwind + %call47 = tail call i32 @strlen(i8* %.) nounwind + unreachable +} |