42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=x86_64-pc-linux < %s | FileCheck %s
|
|
;
|
|
; Check that x86's peephole optimization doesn't fold a 64-bit load (movsd) into
|
|
; addpd.
|
|
; rdar://problem/18236850
|
|
|
|
%struct.S1 = type { double, double }
|
|
|
|
@g = common dso_local global %struct.S1 zeroinitializer, align 8
|
|
|
|
declare void @foo3(%struct.S1*)
|
|
|
|
define dso_local void @foo1(double %a.coerce0, double %a.coerce1, double %b.coerce0, double %b.coerce1) nounwind {
|
|
; CHECK-LABEL: foo1:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: subq $24, %rsp
|
|
; CHECK-NEXT: movq %rsp, %rdi
|
|
; CHECK-NEXT: callq foo3
|
|
; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
|
|
; CHECK-NEXT: movapd {{.*#+}} xmm1 = <1.0E+0,u>
|
|
; CHECK-NEXT: movhpd {{.*#+}} xmm1 = xmm1[0],mem[0]
|
|
; CHECK-NEXT: addpd %xmm0, %xmm1
|
|
; CHECK-NEXT: movapd %xmm1, {{.*}}(%rip)
|
|
; CHECK-NEXT: addq $24, %rsp
|
|
; CHECK-NEXT: retq
|
|
%1 = alloca <2 x double>, align 16
|
|
%tmpcast = bitcast <2 x double>* %1 to %struct.S1*
|
|
call void @foo3(%struct.S1* %tmpcast) #2
|
|
%p2 = getelementptr inbounds %struct.S1, %struct.S1* %tmpcast, i64 0, i32 0
|
|
%2 = load double, double* %p2, align 16
|
|
%p3 = getelementptr inbounds %struct.S1, %struct.S1* %tmpcast, i64 0, i32 1
|
|
%3 = load double, double* %p3, align 8
|
|
%4 = insertelement <2 x double> undef, double %2, i32 0
|
|
%5 = insertelement <2 x double> %4, double 0.000000e+00, i32 1
|
|
%6 = insertelement <2 x double> undef, double %3, i32 1
|
|
%7 = insertelement <2 x double> %6, double 1.000000e+00, i32 0
|
|
%8 = fadd <2 x double> %5, %7
|
|
store <2 x double> %8, <2 x double>* bitcast (%struct.S1* @g to <2 x double>*), align 16
|
|
ret void
|
|
}
|