derek.holloway
7502bf64a4
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72 lines
2.1 KiB
LLVM
72 lines
2.1 KiB
LLVM
; RUN: llc < %s -mtriple=s390x-ibm-zos | FileCheck %s
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%struct.LargeStruct_t = type { [33 x i32] }
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@GlobLargeS = hidden global %struct.LargeStruct_t zeroinitializer, align 4
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@GlobInt = hidden global i32 0, align 4
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; === Check that function with small frame does not emit PPA1 Argument Area Length.
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define void @fSmallOutArgArea() {
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; CHECK-LABEL: L#EPM_fSmallOutArgArea_0 DS 0H
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; CHECK: * Bit 1: 1 = Leaf function
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; CHECK: * Bit 2: 0 = Does not use alloca
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; CHECK: DC XL4'00000008'
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; CHECK: fSmallOutArgArea DS 0H
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ret void
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}
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; === Check that function with large frame does emit PPA1 Argument Area Length.
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define void @fLargeOutArgArea() {
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; CHECK-LABEL: L#EPM_fLargeOutArgArea_0 DS 0H
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; CHECK: * Bit 1: 0 = Non-leaf function
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; CHECK: * Bit 2: 0 = Does not use alloca
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; CHECK: DC XL4'00000220'
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; CHECK: fLargeOutArgArea DS 0H
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%1 = load [33 x i32], ptr @GlobLargeS, align 4
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call void @fLargeParm([33 x i32] inreg %1)
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ret void
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}
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; === Check that function with parameter does emit PPA1 Length/4 of parms
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define void @fLargeParm([33 x i64] inreg %arr) {
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; CHECK-LABEL: L#EPM_fLargeParm_0 DS 0H
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%1 = extractvalue [33 x i64] %arr, 1
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call void @foo(i64 %1)
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ret void
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}
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; === Check that function with alloca call does emit PPA1 Argument Area Length.
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define hidden void @fHasAlloca() {
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; CHECK-LABEL: L#EPM_fHasAlloca_0 DS 0H
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; CHECK: * Bit 2: 1 = Uses alloca
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; CHECK: fHasAlloca DS 0H
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%p = alloca ptr, align 4
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%1 = load i32, ptr @GlobInt, align 4
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%2 = alloca i8, i32 %1, align 8
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store ptr %2, ptr %p, align 4
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ret void
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}
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declare void @foo(i64)
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; CHECK-LABEL: L#PPA1_fSmallOutArgArea_0 DS 0H
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; CHECK: * PPA1 Flags 3
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; CHECK: DC XL1'00'
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; CHECK-LABEL: L#PPA1_fLargeOutArgArea_0 DS 0H
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; CHECK: * PPA1 Flags 3
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; CHECK: * Bit 1: 1 = Argument Area Length is in optional area
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; CHECK: DC XL1'40'
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; CHECK: * Argument Area Length
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; CHECK: DC XL4'00000140'
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; CHECK-LABEL: L#PPA1_fLargeParm_0 DS 0H
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; CHECK: * Length/4 of Parms
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; CHECK: DC XL2'0042'
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; CHECK-LABEL: L#PPA1_fHasAlloca_0 DS 0H
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; CHECK: * PPA1 Flags 3
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; CHECK: * Bit 1: 1 = Argument Area Length is in optional area
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; CHECK: DC XL1'40'
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; CHECK: * Argument Area Length
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; CHECK: DC XL4'00000040'
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