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[X86][F16C] Add F16C -O0 test coverage 

Ensure the duplicate conversions noticed in D48614 have gone
This commit is contained in:
Simon Pilgrim 2021-03-29 11:30:16 +01:00
parent 4e087989c6
commit b5da813fe9
1 changed files with 49 additions and 0 deletions
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49
llvm/test/CodeGen/X86/pr31088.ll
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@ -2,6 +2,7 @@
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X64
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+f16c | FileCheck %s --check-prefix=F16C
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+f16c -O0 | FileCheck %s --check-prefix=F16C-O0
define <1 x half> @ir_fadd_v1f16(<1 x half> %arg0, <1 x half> %arg1) nounwind {
; X86-LABEL: ir_fadd_v1f16:
@ -53,6 +54,22 @@ define <1 x half> @ir_fadd_v1f16(<1 x half> %arg0, <1 x half> %arg1) nounwind {
; F16C-NEXT: vmovd %xmm0, %eax
; F16C-NEXT: # kill: def $ax killed $ax killed $eax
; F16C-NEXT: retq
;
; F16C-O0-LABEL: ir_fadd_v1f16:
; F16C-O0: # %bb.0:
; F16C-O0-NEXT: movw %si, %cx
; F16C-O0-NEXT: movw %di, %ax
; F16C-O0-NEXT: movzwl %cx, %ecx
; F16C-O0-NEXT: vmovd %ecx, %xmm0
; F16C-O0-NEXT: vcvtph2ps %xmm0, %xmm1
; F16C-O0-NEXT: movzwl %ax, %eax
; F16C-O0-NEXT: vmovd %eax, %xmm0
; F16C-O0-NEXT: vcvtph2ps %xmm0, %xmm0
; F16C-O0-NEXT: vaddss %xmm1, %xmm0, %xmm0
; F16C-O0-NEXT: vcvtps2ph $4, %xmm0, %xmm0
; F16C-O0-NEXT: vmovd %xmm0, %eax
; F16C-O0-NEXT: # kill: def $ax killed $ax killed $eax
; F16C-O0-NEXT: retq
%retval = fadd <1 x half> %arg0, %arg1
ret <1 x half> %retval
}
@ -171,6 +188,38 @@ define <2 x half> @ir_fadd_v2f16(<2 x half> %arg0, <2 x half> %arg1) nounwind {
; F16C-NEXT: # kill: def $ax killed $ax killed $eax
; F16C-NEXT: # kill: def $dx killed $dx killed $edx
; F16C-NEXT: retq
;
; F16C-O0-LABEL: ir_fadd_v2f16:
; F16C-O0: # %bb.0:
; F16C-O0-NEXT: movl %esi, %eax
; F16C-O0-NEXT: # kill: def $cx killed $cx killed $ecx
; F16C-O0-NEXT: movw %dx, %si
; F16C-O0-NEXT: # kill: def $ax killed $ax killed $eax
; F16C-O0-NEXT: movw %di, %dx
; F16C-O0-NEXT: movzwl %si, %esi
; F16C-O0-NEXT: vmovd %esi, %xmm0
; F16C-O0-NEXT: vcvtph2ps %xmm0, %xmm1
; F16C-O0-NEXT: movzwl %dx, %edx
; F16C-O0-NEXT: vmovd %edx, %xmm0
; F16C-O0-NEXT: vcvtph2ps %xmm0, %xmm0
; F16C-O0-NEXT: vaddss %xmm1, %xmm0, %xmm0
; F16C-O0-NEXT: vcvtps2ph $4, %xmm0, %xmm0
; F16C-O0-NEXT: vpextrw $0, %xmm0, -{{[0-9]+}}(%rsp)
; F16C-O0-NEXT: movzwl %cx, %ecx
; F16C-O0-NEXT: vmovd %ecx, %xmm0
; F16C-O0-NEXT: vcvtph2ps %xmm0, %xmm1
; F16C-O0-NEXT: movzwl %ax, %eax
; F16C-O0-NEXT: vmovd %eax, %xmm0
; F16C-O0-NEXT: vcvtph2ps %xmm0, %xmm0
; F16C-O0-NEXT: vaddss %xmm1, %xmm0, %xmm0
; F16C-O0-NEXT: vcvtps2ph $4, %xmm0, %xmm0
; F16C-O0-NEXT: vpextrw $0, %xmm0, -{{[0-9]+}}(%rsp)
; F16C-O0-NEXT: vmovdqa -{{[0-9]+}}(%rsp), %xmm0
; F16C-O0-NEXT: vmovd %xmm0, %eax
; F16C-O0-NEXT: # kill: def $ax killed $ax killed $eax
; F16C-O0-NEXT: vpextrw $1, %xmm0, %ecx
; F16C-O0-NEXT: movw %cx, %dx
; F16C-O0-NEXT: retq
%retval = fadd <2 x half> %arg0, %arg1
ret <2 x half> %retval
}