1 ; RUN: llc %s -mattr=+avx -o - | FileCheck %s 2 ; Originally from http://llvm.org/PR21743. 3 4 target triple = "x86_64-pc-win32-elf" 5 6 ; Copy propagation may remove COPYs if the result is only used by undef 7 ; operands. 8 ; 9 ; CHECK-LABEL: foo: 10 ; CHECK: movl $339752784, %e[[INDIRECT_CALL1:[a-z]+]] 11 ; CHECK: callq *%r[[INDIRECT_CALL1]] 12 ; Copy the result in a temporary. 13 ; Note: Technically the regalloc could have been smarter and this move not 14 ; required, which would have hidden the bug. 15 ; CHECK: vmovapd %xmm0, [[TMP:%xmm[0-9]+]] 16 ; CHECK-NOT: vxorps %xmm0, %xmm0, %xmm0 17 ; CHECK-NEXT: vcvtsi2sdq %rsi, %xmm0, %xmm6 18 ; CHECK: movl $339772768, %e[[INDIRECT_CALL2:[a-z]+]] 19 ; CHECK-NOT: vmovapd %xmm7, %xmm0 20 ; CHECK-NEXT: vmovapd %xmm6, %xmm1 21 ; Set TMP in the first argument of the second call. 22 ; CHECK_NEXT: callq *%r[[INDIRECT_CALL2]] 23 ; CHECK: retq 24 define double @foo(i64 %arg) { 25 top: 26 %tmp = call double inttoptr (i64 339752784 to double (double, double)*)(double 1.000000e+00, double 0.000000e+00) 27 tail call void asm sideeffect "", "x,~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{dirflag},~{fpsr},~{flags}"(double %tmp) 28 %tmp1 = sitofp i64 %arg to double 29 call void inttoptr (i64 339772768 to void (double, double)*)(double %tmp, double %tmp1) 30 %tmp3 = fadd double %tmp1, %tmp 31 ret double %tmp3 32 } 33
