mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
0d47a2dcc0
This patch lowers the tail pseudoinstruction. This has been modeled after ARM's tail call opt. llvm-svn: 333137
57 lines
1.8 KiB
LLVM
57 lines
1.8 KiB
LLVM
; Check that command line option "-disable-tail-calls" overrides function
|
|
; attribute "disable-tail-calls".
|
|
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER1,NOTAIL
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf -disable-tail-calls \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER1,NOTAIL
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf -disable-tail-calls=false \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER1,TAIL
|
|
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER2,TAIL
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf -disable-tail-calls \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER2,NOTAIL
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf -disable-tail-calls=false \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER2,TAIL
|
|
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER3,TAIL
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf -disable-tail-calls \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER3,NOTAIL
|
|
; RUN: llc < %s -mtriple=riscv32-unknown-elf -disable-tail-calls=false \
|
|
; RUN: | FileCheck %s --check-prefixes=CALLER3,TAIL
|
|
|
|
; CALLER1-LABEL: {{\_?}}caller1
|
|
; CALLER2-LABEL: {{\_?}}caller2
|
|
; CALLER3-LABEL: {{\_?}}caller3
|
|
; NOTAIL-NOT: tail callee
|
|
; NOTAIL: call callee
|
|
; TAIL: tail callee
|
|
; TAIL-NOT: call callee
|
|
|
|
; Function with attribute #0 = { "disable-tail-calls"="true" }
|
|
define i32 @caller1(i32 %a) #0 {
|
|
entry:
|
|
%call = tail call i32 @callee(i32 %a)
|
|
ret i32 %call
|
|
}
|
|
|
|
; Function with attribute #1 = { "disable-tail-calls"="false" }
|
|
define i32 @caller2(i32 %a) #0 {
|
|
entry:
|
|
%call = tail call i32 @callee(i32 %a)
|
|
ret i32 %call
|
|
}
|
|
|
|
define i32 @caller3(i32 %a) {
|
|
entry:
|
|
%call = tail call i32 @callee(i32 %a)
|
|
ret i32 %call
|
|
}
|
|
|
|
declare i32 @callee(i32)
|
|
|
|
attributes #0 = { "disable-tail-calls"="true" }
|
|
attributes #1 = { "disable-tail-calls"="false" }
|