mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-01 17:29:33 +00:00
910139f9ca
registers based on dynamic conditions. For example, X86 EBP/RBP, when used as frame register has to be spilled in the first fixed object. It should inform PEI this so it doesn't get allocated another stack object. Also, it should not be spilled as other callee-saved registers but rather its spilling and restoring are being handled by emitPrologue and emitEpilogue. Avoid spilling it twice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75116 91177308-0d34-0410-b5e6-96231b3b80d8
19 lines
513 B
LLVM
19 lines
513 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 | grep {(%esp}
|
|
; RUN: llvm-as < %s | llc -march=x86 | grep {pushl %ebp} | count 1
|
|
; RUN: llvm-as < %s | llc -march=x86 | grep {popl %ebp} | count 1
|
|
|
|
declare i8* @llvm.returnaddress(i32)
|
|
|
|
declare i8* @llvm.frameaddress(i32)
|
|
|
|
define i8* @test1() {
|
|
%X = call i8* @llvm.returnaddress( i32 0 ) ; <i8*> [#uses=1]
|
|
ret i8* %X
|
|
}
|
|
|
|
define i8* @test2() {
|
|
%X = call i8* @llvm.frameaddress( i32 0 ) ; <i8*> [#uses=1]
|
|
ret i8* %X
|
|
}
|
|
|