08e5e91e45
The CSR lists control which registers are spilled and reloaded in the prologue and epilogue. The stack pointer is managed explicitly, and should never be pushed or popped. Remove it from these lists. This affected regcall and preserves all / most. Differential Revision: https://reviews.llvm.org/D94118
31 lines
1.7 KiB
LLVM
31 lines
1.7 KiB
LLVM
; RUN: llc -mtriple=x86_64-pc-win32 -stop-after machine-sink %s -o %t.mir
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; RUN: FileCheck %s < %t.mir
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; RUN: llc %t.mir -mtriple=x86_64-pc-win32 -run-pass machine-sink
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; Check that callee saved registers are printed in a format that can then be parsed.
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declare x86_regcallcc i32 @callee(i32 %a0, i32 %b0, i32 %c0, i32 %d0, i32 %e0)
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define i32 @caller(i32 %a0) nounwind {
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%b1 = call x86_regcallcc i32 @callee(i32 %a0, i32 %a0, i32 %a0, i32 %a0, i32 %a0)
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%b2 = add i32 %b1, %a0
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ret i32 %b2
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}
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; CHECK: name: caller
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; CHECK: CALL64pcrel32 @callee, CustomRegMask($bh,$bl,$bp,$bph,$bpl,$bx,$ebp,$ebx,$hbp,$hbx,$rbp,$rbx,$r10,$r11,$r12,$r13,$r14,$r15,$xmm8,$xmm9,$xmm10,$xmm11,$xmm12,$xmm13,$xmm14,$xmm15,$r10b,$r11b,$r12b,$r13b,$r14b,$r15b,$r10bh,$r11bh,$r12bh,$r13bh,$r14bh,$r15bh,$r10d,$r11d,$r12d,$r13d,$r14d,$r15d,$r10w,$r11w,$r12w,$r13w,$r14w,$r15w,$r10wh,$r11wh,$r12wh,$r13wh,$r14wh,$r15wh), implicit $rsp, implicit $ssp, implicit $eax, implicit $ecx, implicit $edx, implicit $edi, implicit $esi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
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; CHECK: RET 0, $eax
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define x86_regcallcc {i32, i32, i32} @test_callee(i32 %a0, i32 %b0, i32 %c0, i32 %d0, i32 %e0) nounwind {
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%b1 = mul i32 7, %e0
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%b2 = udiv i32 5, %e0
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%b3 = mul i32 7, %d0
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%b4 = insertvalue {i32, i32, i32} undef, i32 %b1, 0
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%b5 = insertvalue {i32, i32, i32} %b4, i32 %b2, 1
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%b6 = insertvalue {i32, i32, i32} %b5, i32 %b3, 2
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ret {i32, i32, i32} %b6
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}
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; CHECK: name: test_callee
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; CHECK: calleeSavedRegisters: [ '$rbx', '$rbp', '$r10', '$r11', '$r12', '$r13',
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; CHECK: '$r14', '$r15', '$xmm8', '$xmm9', '$xmm10', '$xmm11',
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; CHECK: '$xmm12', '$xmm13', '$xmm14', '$xmm15' ]
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; CHECK: RET 0, $eax, $ecx, $edx
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