llvm-mirror/test/CodeGen/X86/alloca-align-rounding.ll

; RUN: llc < %s -march=x86-64 -mtriple=i686-pc-linux | grep and | count 1

declare void @bar(<2 x i64>* %n)

define void @foo(i64 %h) {
  %p = alloca <2 x i64>, i64 %h
  call void @bar(<2 x i64>* %p)
  ret void
}

define void @foo2(i64 %h) {
  %p = alloca <2 x i64>, i64 %h, align 32
  call void @bar(<2 x i64>* %p)
  ret void
}
Temporarily revert r158087. This patch causes problems when both dynamic stack realignment and dynamic allocas combine in the same function. With this patch, we no longer build the epilog correctly, and silently restore registers from the wrong position in the stack. Thanks to Matt for tracking this down, and getting at least an initial test case to Chad. I'm going to try to check a variation of that test case in so we can easily track the fixes required. llvm-svn: 158654 2012-06-18 09:03:12 +02:00			`; RUN: llc < %s -march=x86-64 -mtriple=i686-pc-linux \| grep and \| count 1`
It's not necessary to do rounding for alloca operations when the requested alignment is equal to the stack alignment. llvm-svn: 40004 2007-07-18 18:29:46 +02:00
			`declare void @bar(<2 x i64>* %n)`

Eliminate the restriction that the array size in an alloca must be i32. This will help reduce the amount of casting required on 64-bit targets. llvm-svn: 104911 2010-05-28 03:14:11 +02:00			`define void @foo(i64 %h) {`
			`%p = alloca <2 x i64>, i64 %h`
It's not necessary to do rounding for alloca operations when the requested alignment is equal to the stack alignment. llvm-svn: 40004 2007-07-18 18:29:46 +02:00			`call void @bar(<2 x i64>* %p)`
			`ret void`
			`}`
Update test: dynamic_stackalloc size must be rounded to ensure stack ptr be left in a valid state. llvm-svn: 41134 2007-08-17 01:51:28 +02:00
Eliminate the restriction that the array size in an alloca must be i32. This will help reduce the amount of casting required on 64-bit targets. llvm-svn: 104911 2010-05-28 03:14:11 +02:00			`define void @foo2(i64 %h) {`
			`%p = alloca <2 x i64>, i64 %h, align 32`
Update test: dynamic_stackalloc size must be rounded to ensure stack ptr be left in a valid state. llvm-svn: 41134 2007-08-17 01:51:28 +02:00			`call void @bar(<2 x i64>* %p)`
			`ret void`
			`}`