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4a18a4e8c1
Don't promote byval pointer arguments when when their size in bits is not equal to their alloc size in bits. This can happen for x86_fp80, where the size in bits is 80 but the alloca size in bits in 128. Promoting these types can break passing unions of x86_fp80s and other types. Patch by Thomas Jablin! Reviewed By: rnk Differential Revision: http://reviews.llvm.org/D5057 llvm-svn: 216693
23 lines
508 B
LLVM
23 lines
508 B
LLVM
; RUN: opt %s -argpromotion -S -o - | FileCheck %s
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; PR14710
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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%pair = type { i32, i32 }
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declare i8* @foo(%pair*)
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define internal void @bar(%pair* byval %Data) {
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; CHECK: define internal void @bar(i32 %Data.0, i32 %Data.1)
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; CHECK: %Data = alloca %pair
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; CHECK-NOT: tail
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; CHECK: call i8* @foo(%pair* %Data)
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tail call i8* @foo(%pair* %Data)
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ret void
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}
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define void @zed(%pair* byval %Data) {
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call void @bar(%pair* byval %Data)
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ret void
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}
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