mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
252673a9d9
See https://reviews.llvm.org/D47106 for details. Reviewed By: probinson Differential Revision: https://reviews.llvm.org/D47171 This commit drops that patch's changes to: llvm/test/CodeGen/NVPTX/f16x2-instructions.ll llvm/test/CodeGen/NVPTX/param-load-store.ll For some reason, the dos line endings there prevent me from commiting via the monorepo. A follow-up commit (not via the monorepo) will finish the patch. llvm-svn: 336843
85 lines
2.2 KiB
LLVM
85 lines
2.2 KiB
LLVM
; Test the backchain attribute.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck -allow-deprecated-dag-overlap %s
|
|
|
|
declare i8 *@llvm.stacksave()
|
|
declare void @llvm.stackrestore(i8 *)
|
|
declare void @g()
|
|
|
|
; nothing should happen if no stack frame is needed.
|
|
define void @f1() "backchain" {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK-NOT: stg
|
|
ret void
|
|
}
|
|
|
|
; check that backchain is saved if we call someone
|
|
define void @f2() "backchain" {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: stmg %r14, %r15, 112(%r15)
|
|
; CHECK: lgr %r1, %r15
|
|
; CHECK: aghi %r15, -160
|
|
; CHECK: stg %r1, 0(%r15)
|
|
call void @g()
|
|
call void @g()
|
|
ret void
|
|
}
|
|
|
|
; check that backchain is saved if we have an alloca
|
|
define void @f3() "backchain" {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK-NOT: stmg
|
|
; CHECK: lgr %r1, %r15
|
|
; CHECK: aghi %r15, -168
|
|
; CHECK: stg %r1, 0(%r15)
|
|
%ign = alloca i8, i32 4
|
|
ret void
|
|
}
|
|
|
|
; check that alloca copies the backchain
|
|
define void @f4(i32 %len) "backchain" {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: stmg %r11, %r15, 88(%r15)
|
|
; CHECK: lgr %r1, %r15
|
|
; CHECK: aghi %r15, -160
|
|
; CHECK: stg %r1, 0(%r15)
|
|
; CHECK: lgr %r11, %r15
|
|
; CHECK-DAG: lg [[BC:%r[0-9]+]], 0(%r15)
|
|
; CHECK-DAG: lgr [[NEWSP:%r[0-9]+]], %r15
|
|
; CHECK: lgr %r15, [[NEWSP]]
|
|
; CHECK: stg [[BC]], 0([[NEWSP]])
|
|
%ign = alloca i8, i32 %len
|
|
ret void
|
|
}
|
|
|
|
; check that llvm.stackrestore restores the backchain
|
|
define void @f5(i32 %count1, i32 %count2) "backchain" {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: stmg %r11, %r15, 88(%r15)
|
|
; CHECK: lgr %r1, %r15
|
|
; CHECK: aghi %r15, -160
|
|
; CHECK: stg %r1, 0(%r15)
|
|
; CHECK: lgr %r11, %r15
|
|
; CHECK-DAG: lgr [[SAVESP:%r[0-9]+]], %r15
|
|
; CHECK-DAG: lg [[BC:%r[0-9]+]], 0(%r15)
|
|
; CHECK-DAG: lgr [[NEWSP:%r[0-9]+]], %r15
|
|
; CHECK-DAG: lgr %r15, [[NEWSP]]
|
|
; CHECK-DAG: stg [[BC]], 0([[NEWSP]])
|
|
; CHECK-DAG: lg [[BC2:%r[0-9]+]], 0(%r15)
|
|
; CHECK-DAG: lgr %r15, [[SAVESP]]
|
|
; CHECK-DAG: stg [[BC2]], 0([[SAVESP]])
|
|
; CHECK-DAG: lg [[BC3:%r[0-9]+]], 0(%r15)
|
|
; CHECK-DAG: lgr [[NEWSP2:%r[0-9]+]], %r15
|
|
; CHECK-DAG: lgr %r15, [[NEWSP2]]
|
|
; CHECK-DAG: stg [[BC3]], 0([[NEWSP2]])
|
|
; CHECK: lmg %r11, %r15, 248(%r11)
|
|
; CHECK: br %r14
|
|
%src = call i8 *@llvm.stacksave()
|
|
%array1 = alloca i8, i32 %count1
|
|
store volatile i8 0, i8 *%array1
|
|
call void @llvm.stackrestore(i8 *%src)
|
|
%array2 = alloca i8, i32 %count2
|
|
store volatile i8 0, i8 *%array2
|
|
ret void
|
|
}
|