llvm-6502/test/Transforms/ArgumentPromotion/tail.ll

; RUN: opt %s -argpromotion -S -o - | FileCheck %s
; PR14710

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

%pair = type { i32, i32 }

declare i8* @foo(%pair*)

define internal void @bar(%pair* byval %Data) {
; CHECK: define internal void @bar(i32 %Data.0, i32 %Data.1)
; CHECK: %Data = alloca %pair
; CHECK-NOT: tail
; CHECK: call i8* @foo(%pair* %Data)
  tail call i8* @foo(%pair* %Data)
  ret void
}

define void @zed(%pair* byval %Data) {
  call void @bar(%pair* byval %Data)
  ret void
}
Remove tail marker when changing an argument to an alloca. Argument promotion can replace an argument of a call with an alloca. This requires clearing the tail marker as it is very likely that the callee is now using an alloca in the caller. This fixes pr14710. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199909 91177308-0d34-0410-b5e6-96231b3b80d8 2014-01-23 17:19:42 +00:00			`; RUN: opt %s -argpromotion -S -o - \| FileCheck %s`
Note the PR number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199932 91177308-0d34-0410-b5e6-96231b3b80d8 2014-01-23 20:17:12 +00:00			`; PR14710`
Remove tail marker when changing an argument to an alloca. Argument promotion can replace an argument of a call with an alloca. This requires clearing the tail marker as it is very likely that the callee is now using an alloca in the caller. This fixes pr14710. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199909 91177308-0d34-0410-b5e6-96231b3b80d8 2014-01-23 17:19:42 +00:00
Don't promote byval pointer arguments when padding matters 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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216693 91177308-0d34-0410-b5e6-96231b3b80d8 2014-08-28 22:42:00 +00:00			`target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"`

Remove tail marker when changing an argument to an alloca. Argument promotion can replace an argument of a call with an alloca. This requires clearing the tail marker as it is very likely that the callee is now using an alloca in the caller. This fixes pr14710. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199909 91177308-0d34-0410-b5e6-96231b3b80d8 2014-01-23 17:19:42 +00:00			`%pair = type { i32, i32 }`

			`declare i8* @foo(%pair*)`

			`define internal void @bar(%pair* byval %Data) {`
			`; CHECK: define internal void @bar(i32 %Data.0, i32 %Data.1)`
			`; CHECK: %Data = alloca %pair`
			`; CHECK-NOT: tail`
			`; CHECK: call i8* @foo(%pair* %Data)`
			`tail call i8* @foo(%pair* %Data)`
			`ret void`
			`}`

			`define void @zed(%pair* byval %Data) {`
			`call void @bar(%pair* byval %Data)`
			`ret void`
			`}`