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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-06-06 10:52:10 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-06-06 10:52:10 +0000 |
| commit | 3d1415889103642e9c6cc943345d36ac53886337 (patch) | |
| tree | 5319697ab7f46666303b34d4a97f352cbeb22f41 /llvm/test/CodeGen | |
| parent | 1b8bfd7e7d63704eb665922d331c7317ae8b1786 (diff) | |
| download | bcm5719-llvm-3d1415889103642e9c6cc943345d36ac53886337.tar.gz bcm5719-llvm-3d1415889103642e9c6cc943345d36ac53886337.zip | |
[X86][BMI][TBM] Only demand bottom 16-bits of the BEXTR control op (PR34042)
Only the bottom 16-bits of BEXTR's control op are required (0:8 INDEX, 15:8 LENGTH).
Differential Revision: https://reviews.llvm.org/D47690
llvm-svn: 334083
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/X86/bmi-x86_64.ll | 4 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/bmi.ll | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/tbm-intrinsics-x86_64.ll | 10 |
3 files changed, 13 insertions, 4 deletions
diff --git a/llvm/test/CodeGen/X86/bmi-x86_64.ll b/llvm/test/CodeGen/X86/bmi-x86_64.ll index 5a733ca3cf0..970dafdde4b 100644 --- a/llvm/test/CodeGen/X86/bmi-x86_64.ll +++ b/llvm/test/CodeGen/X86/bmi-x86_64.ll @@ -52,8 +52,8 @@ define i64 @bextr64b_load(i64* %x) { define i64 @bextr64c(i64 %x, i32 %y) { ; CHECK-LABEL: bextr64c: ; CHECK: # %bb.0: -; CHECK-NEXT: movslq %esi, %rax -; CHECK-NEXT: bextrq %rax, %rdi, %rax +; CHECK-NEXT: # kill: def $esi killed $esi def $rsi +; CHECK-NEXT: bextrq %rsi, %rdi, %rax ; CHECK-NEXT: retq %tmp0 = sext i32 %y to i64 %tmp1 = tail call i64 @llvm.x86.bmi.bextr.64(i64 %x, i64 %tmp0) diff --git a/llvm/test/CodeGen/X86/bmi.ll b/llvm/test/CodeGen/X86/bmi.ll index 40e4c66959b..5ec2da420c4 100644 --- a/llvm/test/CodeGen/X86/bmi.ll +++ b/llvm/test/CodeGen/X86/bmi.ll @@ -404,8 +404,7 @@ define i32 @bextr32c(i32 %x, i16 zeroext %y) { ; ; X64-LABEL: bextr32c: ; X64: # %bb.0: -; X64-NEXT: movswl %si, %eax -; X64-NEXT: bextrl %eax, %edi, %eax +; X64-NEXT: bextrl %esi, %edi, %eax ; X64-NEXT: retq %tmp0 = sext i16 %y to i32 %tmp1 = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 %tmp0) diff --git a/llvm/test/CodeGen/X86/tbm-intrinsics-x86_64.ll b/llvm/test/CodeGen/X86/tbm-intrinsics-x86_64.ll index 0f4b7ce6c93..98ee8f07c00 100644 --- a/llvm/test/CodeGen/X86/tbm-intrinsics-x86_64.ll +++ b/llvm/test/CodeGen/X86/tbm-intrinsics-x86_64.ll @@ -24,6 +24,16 @@ entry: ret i64 %0 } +define i64 @test_x86_tbm_bextri_u64_bigint(i64 %a) nounwind readnone { +; CHECK-LABEL: test_x86_tbm_bextri_u64_bigint: +; CHECK: # %bb.0: # %entry +; CHECK-NEXT: bextrq $65535, %rdi, %rax # imm = 0xFFFF +; CHECK-NEXT: retq +entry: + %0 = tail call i64 @llvm.x86.tbm.bextri.u64(i64 %a, i64 549755813887) + ret i64 %0 +} + define i64 @test_x86_tbm_bextri_u64_z(i64 %a, i64 %b) nounwind readnone { ; CHECK-LABEL: test_x86_tbm_bextri_u64_z: ; CHECK: # %bb.0: # %entry |
