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Diffstat (limited to 'test/CodeGen/Mips/selectiondag-optlevel.ll')
| -rw-r--r-- | test/CodeGen/Mips/selectiondag-optlevel.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/selectiondag-optlevel.ll b/test/CodeGen/Mips/selectiondag-optlevel.ll new file mode 100644 index 000000000000..999361131745 --- /dev/null +++ b/test/CodeGen/Mips/selectiondag-optlevel.ll @@ -0,0 +1,22 @@ +; RUN: llc -march=mips -fast-isel=false -O0 < %s 2>&1 | FileCheck %s -check-prefix=O0 +; RUN: llc -march=mips -fast-isel=false -O2 < %s 2>&1 | FileCheck %s -check-prefix=O2 + +; At -O0, DAGCombine won't try to merge these consecutive loads but it will at +; -O2. + +define void @foo() nounwind { +entry: + %0 = alloca [2 x i8], align 32 + %1 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 0 + store i8 1, i8* %1 + %2 = getelementptr inbounds [2 x i8], [2 x i8]* %0, i32 0, i32 1 + store i8 1, i8* %2 + ret void +} + +; O0: addiu $[[REG:[0-9]+]], $zero, 1 +; O0-DAG: sb $[[REG]], 0($sp) +; O0-DAG: sb $[[REG]], 1($sp) + +; O2: addiu $[[REG:[0-9]+]], $zero, 257 +; O2: sh $[[REG]], 0($sp) |