llvm-6502/test/CodeGen/Mips/llvm-ir/indirectbr.ll
Daniel Sanders f08bcb9b97 [mips][mips64r6] Use JALR for indirect branches instead of JR (which is not available on MIPS32r6/MIPS64r6)
Summary:
This completes the change to use JALR instead of JR on MIPS32r6/MIPS64r6.

Reviewers: jkolek, vmedic, zoran.jovanovic, dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4269


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212605 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-09 10:21:59 +00:00

35 lines
1.4 KiB
LLVM

; Test all important variants of the unconditional 'br' instruction.
; RUN: llc -march=mips -mcpu=mips32 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=NOT-R6
; RUN: llc -march=mips -mcpu=mips32r2 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=NOT-R6
; RUN: llc -march=mips -mcpu=mips32r6 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=R6
; RUN: llc -march=mips64 -mcpu=mips4 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=NOT-R6
; RUN: llc -march=mips64 -mcpu=mips64 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=NOT-R6
; RUN: llc -march=mips64 -mcpu=mips64r2 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=NOT-R6
; RUN: llc -march=mips64 -mcpu=mips64r6 -asm-show-inst < %s | FileCheck %s -check-prefix=ALL -check-prefix=R6
define i32 @br(i8 *%addr) {
; ALL-LABEL: br:
; NOT-R6: jr $4 # <MCInst #{{[0-9]+}} JR
; R6: jr $4 # <MCInst #{{[0-9]+}} JALR
; ALL: $BB0_1: # %L1
; NOT-R6: jr $ra # <MCInst #{{[0-9]+}} JR
; R6: jr $ra # <MCInst #{{[0-9]+}} JALR
; ALL: addiu $2, $zero, 0
; ALL: $BB0_2: # %L2
; NOT-R6: jr $ra # <MCInst #{{[0-9]+}} JR
; R6: jr $ra # <MCInst #{{[0-9]+}} JALR
; ALL: addiu $2, $zero, 1
entry:
indirectbr i8* %addr, [label %L1, label %L2]
L1:
ret i32 0
L2:
ret i32 1
}