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5b89989aa5
with an additional fix to make RegAllocFast ignore undef physreg uses. It would previously get confused about the "push %eax" instruction's use of eax. That method for adjusting the stack pointer is used in X86FrameLowering::emitSPUpdate as well, but since that runs after register-allocation, we didn't run into the RegAllocFast issue before. llvm-svn: 269949
20 lines
419 B
LLVM
20 lines
419 B
LLVM
; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s
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; Allocas with unknown size in the entry block are dynamic.
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define void @foo(i32 %n) {
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%m = alloca i32, i32 %n
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ret void
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}
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; CHECK-LABEL: _foo:
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; CHECK: calll __chkstk
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; CHECK: retl
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; Use of inalloca implies that that the alloca is not static.
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define void @bar() {
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%m = alloca inalloca i32
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ret void
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}
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; CHECK-LABEL: _bar:
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; CHECK: pushl %eax
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; CHECK: retl
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