; RUN: llc < %s -O3 -relocation-model=pic -mattr=+thumb2 -mcpu=cortex-a8 -disable-branch-fold | FileCheck %s target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32" target triple = "thumbv7-apple-darwin10" ; This is a case where the coalescer was too eager. These two copies were ; considered equivalent and coalescable: ; ; 140 %reg1038:dsub_0 = VMOVD %reg1047:dsub_0, 14, %reg0 ; 148 %reg1038:dsub_1 = VMOVD %reg1047:dsub_0, 14, %reg0 ; ; Only one can be coalesced. @.str = private constant [7 x i8] c"%g %g\0A\00", align 4 ; <[7 x i8]*> [#uses=1] define i32 @main(i32 %argc, i8** nocapture %Argv) nounwind { entry: %0 = icmp eq i32 %argc, 2123 ; [#uses=1] %U.0 = select i1 %0, double 3.282190e+01, double 8.731834e+02 ; [#uses=2] %1 = icmp eq i32 %argc, 5123 ; [#uses=1] %V.0.ph = select i1 %1, double 7.779980e+01, double 0x409CCB9C779A6B51 ; [#uses=1] %2 = insertelement <2 x double> undef, double %U.0, i32 0 ; <<2 x double>> [#uses=2] %3 = insertelement <2 x double> %2, double %U.0, i32 1 ; <<2 x double>> [#uses=2] %4 = insertelement <2 x double> %2, double %V.0.ph, i32 1 ; <<2 x double>> [#uses=2] ; Constant pool load followed by add. ; Then clobber the loaded register, not the sum. ; CHECK: vldr [[LDR:d.*]], ; CHECK: LPC0_0: ; CHECK: vadd.f64 [[ADD:d.*]], [[LDR]], [[LDR]] ; CHECK-NOT: vmov.f64 [[ADD]] %5 = fadd <2 x double> %3, %3 ; <<2 x double>> [#uses=2] %6 = fadd <2 x double> %4, %4 ; <<2 x double>> [#uses=2] %tmp7 = extractelement <2 x double> %5, i32 0 ; [#uses=1] %tmp5 = extractelement <2 x double> %5, i32 1 ; [#uses=1] ; CHECK: printf %7 = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0), double %tmp7, double %tmp5) nounwind ; [#uses=0] %tmp3 = extractelement <2 x double> %6, i32 0 ; [#uses=1] %tmp1 = extractelement <2 x double> %6, i32 1 ; [#uses=1] %8 = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i32 0, i32 0), double %tmp3, double %tmp1) nounwind ; [#uses=0] ret i32 0 } declare i32 @printf(i8* nocapture, ...) nounwind