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1; RUN: llc -mtriple=x86_64-apple-darwin -stop-after finalize-isel <%s | FileCheck %s2 3; Check that the callee excludes the return register (%rax) from the list of4; callee-saved-registers.5define preserve_allcc i64 @callee1(i64 %a0, i64 %b0, i64 %c0, i64 %d0, i64 %e0) nounwind {6 %a1 = mul i64 %a0, %b07 %a2 = mul i64 %a1, %c08 %a3 = mul i64 %a2, %d09 %a4 = mul i64 %a3, %e010 ret i64 %a411}12; CHECK: name: callee113; CHECK: calleeSavedRegisters: [ '$rbx', '$r12', '$r13', '$r14', '$r15', '$rbp',14; CHECK: '$rcx', '$rdx', '$rsi', '$rdi', '$r8', '$r9', '$r10',15; CHECK: '$xmm0', '$xmm1', '$xmm2', '$xmm3', '$xmm4', '$xmm5',16; CHECK: '$xmm6', '$xmm7', '$xmm8', '$xmm9', '$xmm10', '$xmm11',17; CHECK: '$xmm12', '$xmm13', '$xmm14', '$xmm15' ]18; CHECK: RET 0, $rax19 20; Check that RegMask contains parameter registers (%rdi, %rsi, %rdx, %rcx,21; %r8), but doesn't contain the return register (%rax).22define i64 @caller1(i64 %a0) nounwind {23 %b1 = call preserve_allcc i64 @callee1(i64 %a0, i64 %a0, i64 %a0, i64 %a0, i64 %a0)24 %b2 = add i64 %b1, %a025 ret i64 %b226}27; CHECK: name: caller128; CHECK: CALL64pcrel32 @callee1, CustomRegMask($bh,$bl,$bp,$bph,$bpl,$bx,$ch,$cl,$cx,$dh,$di,$dih,$dil,$dl,$dx,$ebp,$ebx,$ecx,$edi,$edx,$esi,$hbp,$hbx,$hcx,$hdi,$hdx,$hsi,$rbp,$rbx,$rcx,$rdi,$rdx,$rsi,$si,$sih,$sil,$r8,$r9,$r10,$r12,$r13,$r14,$r15,$xmm0,$xmm1,$xmm2,$xmm3,$xmm4,$xmm5,$xmm6,$xmm7,$xmm8,$xmm9,$xmm10,$xmm11,$xmm12,$xmm13,$xmm14,$xmm15,$r8b,$r9b,$r10b,$r12b,$r13b,$r14b,$r15b,$r8bh,$r9bh,$r10bh,$r12bh,$r13bh,$r14bh,$r15bh,$r8d,$r9d,$r10d,$r12d,$r13d,$r14d,$r15d,$r8w,$r9w,$r10w,$r12w,$r13w,$r14w,$r15w,$r8wh,$r9wh,$r10wh,$r12wh,$r13wh,$r14wh,$r15wh), implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit $rdx, implicit $rcx, implicit $r8, implicit-def $rsp, implicit-def $ssp, implicit-def $rax29; CHECK: RET 0, $rax30 31 32; Check that the callee excludes the return registers (%rax, %rdx) from the list33; of callee-saved-registers.34define preserve_allcc {i64, i64} @callee2(i64 %a0, i64 %b0, i64 %c0, i64 %d0, i64 %e0) nounwind {35 %a1 = mul i64 %a0, %b036 %a2 = mul i64 %a1, %c037 %a3 = mul i64 %a2, %d038 %a4 = mul i64 %a3, %e039 %b4 = insertvalue {i64, i64} undef, i64 %a3, 040 %b5 = insertvalue {i64, i64} %b4, i64 %a4, 141 ret {i64, i64} %b542}43; CHECK: name: callee244; CHECK: calleeSavedRegisters: [ '$rbx', '$r12', '$r13', '$r14', '$r15', '$rbp',45; CHECK: '$rcx', '$rsi', '$rdi', '$r8', '$r9', '$r10', '$xmm0',46; CHECK: '$xmm1', '$xmm2', '$xmm3', '$xmm4', '$xmm5', '$xmm6',47; CHECK: '$xmm7', '$xmm8', '$xmm9', '$xmm10', '$xmm11',48; CHECK: '$xmm12', '$xmm13', '$xmm14', '$xmm15' ]49; CHECK: RET 0, $rax, $rdx50 51 52; Check that RegMask contains parameter registers (%rdi, %rsi, %rdx, %rcx,53; %r8), but doesn't contain the return registers (%rax, %rdx).54define {i64, i64} @caller2(i64 %a0) nounwind {55 %b1 = call preserve_allcc {i64, i64} @callee2(i64 %a0, i64 %a0, i64 %a0, i64 %a0, i64 %a0)56 ret {i64, i64} %b157}58; CHECK: name: caller259; CHECL: CALL64pcrel32 @callee2, CustomRegMask($bh,$bl,$bp,$bph,$bpl,$bx,$ch,$cl,$cx,$di,$dih,$dil,$ebp,$ebx,$ecx,$edi,$esi,$hbp,$hbx,$hcx,$hdi,$hsi,$rbp,$rbx,$rcx,$rdi,$rsi,$si,$sih,$sil,$r8,$r9,$r10,$r12,$r13,$r14,$r15,$xmm0,$xmm1,$xmm2,$xmm3,$xmm4,$xmm5,$xmm6,$xmm7,$xmm8,$xmm9,$xmm10,$xmm11,$xmm12,$xmm13,$xmm14,$xmm15,$r8b,$r9b,$r10b,$r12b,$r13b,$r14b,$r15b,$r8bh,$r9bh,$r10bh,$r12bh,$r13bh,$r14bh,$r15bh,$r8d,$r9d,$r10d,$r12d,$r13d,$r14d,$r15d,$r8w,$r9w,$r10w,$r12w,$r13w,$r14w,$r15w,$r8wh,$r9wh,$r10wh,$r12wh,$r13wh,$r14wh,$r15wh), implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit $rdx, implicit $rcx, implicit $r8, implicit-def $rsp, implicit-def $ssp, implicit-def $rax, implicit-def $rdx60; CHECK: RET 0, $rax, $rdx61 62 63%struct.Large = type { i64, double, double }64 65; Declare the callee with a sret parameter.66declare preserve_allcc void @callee3(ptr noalias nocapture writeonly sret(%struct.Large) align 4 %a0, i64 %b0) nounwind;67 68; Check that RegMask contains %rax and subregisters.69define void @caller3(i64 %a0) nounwind {70 %a1 = alloca %struct.Large, align 871 call preserve_allcc void @callee3(ptr nonnull sret(%struct.Large) align 8 %a1, i64 %a0)72 ret void73}74; CHECK: name: caller375; CHECK: CALL64pcrel32 @callee3, CustomRegMask($ah,$al,$ax,$bh,$bl,$bp,$bph,$bpl,$bx,$ch,$cl,$cx,$dh,$di,$dih,$dil,$dl,$dx,$eax,$ebp,$ebx,$ecx,$edi,$edx,$esi,$hax,$hbp,$hbx,$hcx,$hdi,$hdx,$hsi,$rax,$rbp,$rbx,$rcx,$rdi,$rdx,$rsi,$si,$sih,$sil,$r8,$r9,$r10,$r12,$r13,$r14,$r15,$xmm0,$xmm1,$xmm2,$xmm3,$xmm4,$xmm5,$xmm6,$xmm7,$xmm8,$xmm9,$xmm10,$xmm11,$xmm12,$xmm13,$xmm14,$xmm15,$r8b,$r9b,$r10b,$r12b,$r13b,$r14b,$r15b,$r8bh,$r9bh,$r10bh,$r12bh,$r13bh,$r14bh,$r15bh,$r8d,$r9d,$r10d,$r12d,$r13d,$r14d,$r15d,$r8w,$r9w,$r10w,$r12w,$r13w,$r14w,$r15w,$r8wh,$r9wh,$r10wh,$r12wh,$r13wh,$r14wh,$r15wh), implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit-def $rsp, implicit-def $ssp76; CHECK: RET 077 78 79; Check that the callee excludes the return registers (%rax, %xmm0) from the list80; of callee-saved-registers.81define preserve_allcc {i64, double} @callee4(i64 %a0, i64 %b0, i64 %c0, i64 %d0, i64 %e0) nounwind {82 %a1 = mul i64 %a0, %b083 %a2 = mul i64 %a1, %c084 %a3 = mul i64 %a2, %d085 %a4 = mul i64 %a3, %e086 %b4 = insertvalue {i64, double} undef, i64 %a3, 087 %b5 = insertvalue {i64, double} %b4, double 1.2, 188 ret {i64, double} %b589}90; CHECK: name: callee491; CHECK: calleeSavedRegisters: [ '$rbx', '$r12', '$r13', '$r14', '$r15', '$rbp',92; CHECK: '$rcx', '$rdx', '$rsi', '$rdi', '$r8', '$r9', '$r10',93; CHECK: '$xmm1', '$xmm2', '$xmm3', '$xmm4', '$xmm5', '$xmm6',94; CHECK: '$xmm7', '$xmm8', '$xmm9', '$xmm10', '$xmm11',95; CHECK: '$xmm12', '$xmm13', '$xmm14', '$xmm15' ]96; CHECK: RET 0, $rax, $xmm097 98; Check that RegMask contains parameter registers (%rdi, %rsi, %rdx, %rcx,99; %r8), but doesn't contain the return registers (%rax, %xmm0).100define {i64, double} @caller4(i64 %a0) nounwind {101 %b1 = call preserve_allcc {i64, double} @callee4(i64 %a0, i64 %a0, i64 %a0, i64 %a0, i64 %a0)102 ret {i64, double} %b1103}104; CHECK: name: caller4105; CHECK: CALL64pcrel32 @callee4, CustomRegMask($bh,$bl,$bp,$bph,$bpl,$bx,$ch,$cl,$cx,$dh,$di,$dih,$dil,$dl,$dx,$ebp,$ebx,$ecx,$edi,$edx,$esi,$hbp,$hbx,$hcx,$hdi,$hdx,$hsi,$rbp,$rbx,$rcx,$rdi,$rdx,$rsi,$si,$sih,$sil,$r8,$r9,$r10,$r12,$r13,$r14,$r15,$xmm1,$xmm2,$xmm3,$xmm4,$xmm5,$xmm6,$xmm7,$xmm8,$xmm9,$xmm10,$xmm11,$xmm12,$xmm13,$xmm14,$xmm15,$r8b,$r9b,$r10b,$r12b,$r13b,$r14b,$r15b,$r8bh,$r9bh,$r10bh,$r12bh,$r13bh,$r14bh,$r15bh,$r8d,$r9d,$r10d,$r12d,$r13d,$r14d,$r15d,$r8w,$r9w,$r10w,$r12w,$r13w,$r14w,$r15w,$r8wh,$r9wh,$r10wh,$r12wh,$r13wh,$r14wh,$r15wh), implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit $rdx, implicit $rcx, implicit $r8, implicit-def $rsp, implicit-def $ssp, implicit-def $rax, implicit-def $xmm0106 107; CHECK: RET 0, $rax, $xmm0108