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llvm-mirror/test/CodeGen/X86/pr2656.ll
Matt Arsenault 4bf7d5872e OpaquePtr: Bulk update tests to use typed byval
Upgrade of the IR text tests should be the only thing blocking making
typed byval mandatory. Partially done through regex and partially
manual.
2020-11-20 14:00:46 -05:00

70 lines
2.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mattr=+sse2 | FileCheck %s
; PR2656
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i686-apple-darwin9.4.0"
%struct.anon = type <{ float, float }>
@.str = internal constant [17 x i8] c"pt: %.0f, %.0f\0A\00\00" ; <[17 x i8]*> [#uses=1]
; We can not fold either stack load into an 'xor' instruction because that
; would change what should be a 4-byte load into a 16-byte load.
; We can fold the 16-byte constant load into either 'xor' instruction,
; but we do not. It has more than one use, so it gets loaded into a register.
define void @foo(%struct.anon* byval(%struct.anon) %p) nounwind {
; CHECK-LABEL: foo:
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: subl $28, %esp
; CHECK-NEXT: movaps {{.*#+}} xmm0 = [-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0]
; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
; CHECK-NEXT: movss {{.*#+}} xmm2 = mem[0],zero,zero,zero
; CHECK-NEXT: xorps %xmm0, %xmm1
; CHECK-NEXT: cvtss2sd %xmm1, %xmm1
; CHECK-NEXT: xorps %xmm0, %xmm2
; CHECK-NEXT: xorps %xmm0, %xmm0
; CHECK-NEXT: cvtss2sd %xmm2, %xmm0
; CHECK-NEXT: movsd %xmm0, {{[0-9]+}}(%esp)
; CHECK-NEXT: movsd %xmm1, {{[0-9]+}}(%esp)
; CHECK-NEXT: movl $_.str, (%esp)
; CHECK-NEXT: calll _printf
; CHECK-NEXT: addl $28, %esp
; CHECK-NEXT: retl
entry:
%tmp = getelementptr %struct.anon, %struct.anon* %p, i32 0, i32 0 ; <float*> [#uses=1]
%tmp1 = load float, float* %tmp ; <float> [#uses=1]
%tmp2 = getelementptr %struct.anon, %struct.anon* %p, i32 0, i32 1 ; <float*> [#uses=1]
%tmp3 = load float, float* %tmp2 ; <float> [#uses=1]
%neg = fsub float -0.000000e+00, %tmp1 ; <float> [#uses=1]
%conv = fpext float %neg to double ; <double> [#uses=1]
%neg4 = fsub float -0.000000e+00, %tmp3 ; <float> [#uses=1]
%conv5 = fpext float %neg4 to double ; <double> [#uses=1]
%call = call i32 (...) @printf( i8* getelementptr ([17 x i8], [17 x i8]* @.str, i32 0, i32 0), double %conv, double %conv5 ) ; <i32> [#uses=0]
ret void
}
declare i32 @printf(...)
; We can not fold the load from the stack into the 'and' instruction because
; that changes an 8-byte load into a 16-byte load (illegal memory access).
; We can fold the load of the constant because it is a 16-byte vector constant.
define double @PR22371(double %x) {
; CHECK-LABEL: PR22371:
; CHECK: ## %bb.0:
; CHECK-NEXT: subl $12, %esp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; CHECK-NEXT: andps LCPI1_0, %xmm0
; CHECK-NEXT: movlps %xmm0, (%esp)
; CHECK-NEXT: fldl (%esp)
; CHECK-NEXT: addl $12, %esp
; CHECK-NEXT: retl
%call = tail call double @fabs(double %x) #0
ret double %call
}
declare double @fabs(double) #0
attributes #0 = { readnone }