diff options
| author | Cameron Zwarich <zwarich@apple.com> | 2011-06-07 23:54:00 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-06-07 23:54:00 +0000 |
| commit | aaa5f14d7c8cf0757e062046e8a3780ef80ebb10 (patch) | |
| tree | 11121fb9c8c1bb598f22ba5ac0bca871fed44f08 /test | |
| parent | d846e3fb5a36c625df1bea3d4ef4e337b7b6e917 (diff) | |
| download | llvm-aaa5f14d7c8cf0757e062046e8a3780ef80ebb10.tar.gz llvm-aaa5f14d7c8cf0757e062046e8a3780ef80ebb10.tar.bz2 llvm-aaa5f14d7c8cf0757e062046e8a3780ef80ebb10.tar.xz | |
Fix an issue where the two-address conversion pass incorrectly rewrites untied
operands to an early clobber register. This fixes <rdar://problem/9566076>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132738 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/Thumb2/2011-06-07-TwoAddrEarlyClobber.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/2011-06-07-TwoAddrEarlyClobber.ll b/test/CodeGen/Thumb2/2011-06-07-TwoAddrEarlyClobber.ll new file mode 100644 index 0000000000..9e6d78e75d --- /dev/null +++ b/test/CodeGen/Thumb2/2011-06-07-TwoAddrEarlyClobber.ll @@ -0,0 +1,36 @@ +; RUN: llc < %s | FileCheck %s +target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32" +target triple = "thumbv7-apple-darwin10" + +%struct.op = type { %struct.op*, %struct.op*, %struct.op* ()*, i32, i16, i16, i8, i8 } + +; CHECK: Perl_ck_sort +; CHECK: ldr +; CHECK: mov [[REGISTER:(r[0-9]+)|(lr)]] +; CHECK: str {{(r[0-9])|(lr)}}, {{\[}}[[REGISTER]]{{\]}}, #24 + +define void @Perl_ck_sort() nounwind optsize { +entry: + %tmp27 = load %struct.op** undef, align 4 + switch i16 undef, label %if.end151 [ + i16 178, label %if.then60 + i16 177, label %if.then60 + ] + +if.then60: ; preds = %if.then40 + br i1 undef, label %if.then67, label %if.end95 + +if.then67: ; preds = %if.then60 + %op_next71 = getelementptr inbounds %struct.op* %tmp27, i32 0, i32 0 + store %struct.op* %tmp27, %struct.op** %op_next71, align 4 + %0 = getelementptr inbounds %struct.op* %tmp27, i32 1, i32 0 + br label %if.end95 + +if.end95: ; preds = %if.else92, %if.then67 + %.pre-phi = phi %struct.op** [ undef, %if.then60 ], [ %0, %if.then67 ] + %tmp98 = load %struct.op** %.pre-phi, align 4 + br label %if.end151 + +if.end151: ; preds = %if.end100, %if.end, %entry + ret void +} |