707780b420
This allows us to ensure that 0 is never a valid pointer to a user object, and ensures that the offset is always legal without needing a register to access it. This comes at the cost of usable offsets and wasted stack space. llvm-svn: 295877
45 lines
1.0 KiB
LLVM
45 lines
1.0 KiB
LLVM
; RUN: llc -O0 -march=amdgcn -verify-machineinstrs < %s | FileCheck %s
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; Test that the alignment of kernel arguments does not impact the
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; alignment of the stack
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; CHECK-LABEL: {{^}}no_args:
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; CHECK: ScratchSize: 5{{$}}
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define void @no_args() {
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%alloca = alloca i8
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store volatile i8 0, i8* %alloca
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ret void
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}
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; CHECK-LABEL: {{^}}force_align32:
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; CHECK: ScratchSize: 5{{$}}
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define void @force_align32(<8 x i32>) {
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%alloca = alloca i8
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store volatile i8 0, i8* %alloca
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ret void
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}
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; CHECK-LABEL: {{^}}force_align64:
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; CHECK: ScratchSize: 5{{$}}
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define void @force_align64(<16 x i32>) {
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%alloca = alloca i8
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store volatile i8 0, i8* %alloca
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ret void
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}
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; CHECK-LABEL: {{^}}force_align128:
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; CHECK: ScratchSize: 5{{$}}
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define void @force_align128(<32 x i32>) {
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%alloca = alloca i8
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store volatile i8 0, i8* %alloca
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ret void
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}
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; CHECK-LABEL: {{^}}force_align256:
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; CHECK: ScratchSize: 5{{$}}
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define void @force_align256(<64 x i32>) {
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%alloca = alloca i8
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store volatile i8 0, i8* %alloca
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ret void
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}
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