diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/stack-folding-int-sse42.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/stack-folding-int-sse42.ll | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/X86/stack-folding-int-sse42.ll b/llvm/test/CodeGen/X86/stack-folding-int-sse42.ll index 5c6f697610a..3ca94b7b946 100644 --- a/llvm/test/CodeGen/X86/stack-folding-int-sse42.ll +++ b/llvm/test/CodeGen/X86/stack-folding-int-sse42.ll @@ -453,6 +453,21 @@ declare <16 x i8> @llvm.x86.sse42.pcmpistrm128(<16 x i8>, <16 x i8>, i8) nounwin ; TODO stack_fold_pextrb +; We can't naively fold pextrw as it only writes to a 16-bit memory location +; even though it can store to a 32-bit register. +define i16 @stack_fold_pextrw(<8 x i16> %a0) { +; CHECK-LABEL: stack_fold_pextrw +; CHECK: pextrw $1, {{%xmm[0-9][0-9]*}}, %[[GPR32:(e[a-z]+|r[0-9]+d)]] +; CHECK: movl %[[GPR32]], {{-?[0-9]*}}(%rsp) {{.*#+}} 4-byte Spill +; CHECK: movl {{-?[0-9]*}}(%rsp), %eax {{.*#+}} 4-byte Reload +entry: +; add forces execution domain + %add = add <8 x i16> %a0, <i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7, i16 8> + %extract = extractelement <8 x i16> %add, i32 1 + %asm = tail call <2 x i64> asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() + ret i16 %extract +} + define i32 @stack_fold_pextrd(<4 x i32> %a0) { ;CHECK-LABEL: stack_fold_pextrd ;CHECK: pextrd $1, {{%xmm[0-9][0-9]*}}, {{-?[0-9]*}}(%rsp) {{.*#+}} 4-byte Folded Spill @@ -473,8 +488,6 @@ define i64 @stack_fold_pextrq(<2 x i64> %a0) { ret i64 %1 } -; TODO stack_fold_pextrw - define <4 x i32> @stack_fold_phaddd(<4 x i32> %a0, <4 x i32> %a1) { ;CHECK-LABEL: stack_fold_phaddd ;CHECK: phaddd {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload |
