142 lines
5.1 KiB
LLVM
142 lines
5.1 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
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; Paramater Save Area is not needed if number of parameter does not exceed
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; number of registers
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; ------------------------------------------------------------------------------
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; Max number of GPR is 8
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define linkonce_odr void
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@WithoutParamArea(i8* %a, i32 signext %b) align 2 {
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entry:
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call fastcc void @fastccFunc(i32 signext 1)
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ret void
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; CHECK-LABEL: WithoutParamArea
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; CHECK: stdu 1, -32(1)
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; CHECK: blr
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}
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declare fastcc void @fastccFunc(i32 signext %level) unnamed_addr
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; No need for Parameter Save Area if only 8 GPRs is needed.
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define linkonce_odr void @WithoutParamArea2(i8* %a, i32 signext %b) align 2 {
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entry:
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call fastcc void @eightArgs(i32 signext 1, i32 signext 2, i32 signext 3,
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i32 signext 4, i32 signext 5, i32 signext 6,
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i32 signext 7, i32 signext 8)
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ret void
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; CHECK-LABEL: WithoutParamArea2
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; CHECK: stdu 1, -32(1)
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; CHECK: blr
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}
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declare fastcc void
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@eightArgs(i32 signext %level, i32 signext %level2, i32 signext %level3,
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i32 signext %level4, i32 signext %level5, i32 signext %level6,
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i32 signext %level7, i32 signext %level8) unnamed_addr
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; No need for Parameter Save Area for calls that utiliizes 8 GPR and 2 FPR.
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define linkonce_odr void @WithoutParamArea3(i8* %a, i32 signext %b) align 2 {
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entry:
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call fastcc void
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@mixedArgs(i32 signext 1, float 1.0, i32 signext 2, float 2.0,
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i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6,
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i32 signext 7, i32 signext 8) ret void
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ret void
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; CHECK-LABEL: WithoutParamArea3
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; CHECK: stdu 1, -32(1)
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; CHECK: blr
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}
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declare fastcc void
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@mixedArgs(i32 signext %level, float %levelf1, i32 signext %level2,
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float %levelf2, i32 signext %level3, i32 signext %level4,
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i32 signext %level5, i32 signext %level6, i32 signext %level7,
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i32 signext %level8) unnamed_addr
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; Pass by value usage requiring less GPR then available
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%"myClass::Mem" = type { i8, i8, i16, i32, i32, i32, i64 }
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define internal fastcc void @CallPassByValue(%"myClass::Mem"* %E) align 2 {
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entry:
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call fastcc void @PassByValue(%"myClass::Mem"* byval(%"myClass::Mem") nonnull align 8 undef);
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ret void
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; CHECK-LABEL: PassByValue
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; CHECK: stdu 1, -32(1)
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; CHECK: blr
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}
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declare dso_local fastcc void
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@PassByValue(%"myClass::Mem"* byval(%"myClass::Mem") nocapture readonly align 8) align 2
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; Verify Paramater Save Area is allocated if parameter exceed the number that
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; can be passed via registers
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; ------------------------------------------------------------------------------
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; Max number of GPR is 8
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define linkonce_odr void @WithParamArea(i8 * %a, i32 signext %b) align 2 {
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entry:
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call fastcc void @nineArgs(i32 signext 1, i32 signext 2, i32 signext 3,
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i32 signext 4, i32 signext 5, i32 signext 6,
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i32 signext 7, i32 signext 8, i32 signext 9)
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ret void
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; CHECK-LABEL: WithParamArea
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; CHECK: stdu 1, -96(1)
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; CHECK: blr
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}
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declare fastcc void @nineArgs(i32 signext %level, i32 signext %level2,
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i32 signext %level3, i32 signext %level4, i32 signext %level5,
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i32 signext %level6, i32 signext %level7, i32 signext %level8,
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i32 signext %level9) unnamed_addr
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; Max number of FPR for parameter passing is 13
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define linkonce_odr void @WithParamArea2(i8* %a, i32 signext %b) align 2 {
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entry:
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call fastcc void @funcW14FloatArgs(float 1.0, float 2.0, float 3.0,
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float 4.0, float 5.0, float 6.0, float 7.0, float 8.0, float 1.0,
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float 2.0, float 3.0, float 4.0, float 5.0, float 14.0)
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ret void
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; CHECK-LABEL: WithParamArea2
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; CHECK: stdu 1, -96(1)
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; CHECK: blr
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}
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declare fastcc void
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@funcW14FloatArgs(float %level, float %level2, float %level3,
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float %level4, float %level5, float %level6,
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float %level7, float %level8, float %level9,
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float %level10, float %level11, float %level12,
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float %level13, float %level14);
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; Pass by value usage requires more GPR then available
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%"myClass::MemA" = type { i8, i8, i16, i32, i32, i32, i64 }
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%"myClass::MemB" = type { i32*, i32, i32, %"myClass::MemB"** }
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%"myClass::MemC" = type { %"myClass::MemD"*, %"myClass::MemC"*, i64 }
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%"myClass::MemD" = type { %"myClass::MemB"*, %"myClass::MemC"*, i8, i8, i16,
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i32 }
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%"myStruct::MemF" = type { i32, %"myClass::MemA"*, %"myClass::MemA"*, i64, i64 }
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%"myClass::MemK" = type { i32, %"myClass::MemD"*, %"myClass::MemD"*, i64, i32,
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i64, i8, i32, %"myStruct::MemF",
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i8, %"myClass::MemA"* }
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define internal fastcc void @AggMemExprEmitter(%"myClass::MemK"* %E) align 2 {
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entry:
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call fastcc void @MemExprEmitterInitialization(%"myClass::MemK"*
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byval(%"myClass::MemK") nonnull align 8 undef);
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ret void
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; CHECK-LABEL: AggMemExprEmitter
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; CHECK: stdu 1, -144(1)
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; CHECK: blr
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}
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declare dso_local fastcc void
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@MemExprEmitterInitialization(%"myClass::MemK"*
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byval(%"myClass::MemK") nocapture readonly align 8) align 2
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