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|
# RUN: not llc -mtriple=mips-mti-linux-gnu -mcpu=mips32r2 %s \
# RUN: -start-after=expand-isel-pseudos -stop-after=expand-isel-pseudos \
# RUN: -verify-machineinstrs -mattr=+use-indirect-jump-hazard -o - 2>&1 \
# RUN: | FileCheck %s
# Test that calls are checked when using indirect jumps guards (hazard variant).
# CHECK: Bad machine code: invalid instruction when using jump guards!
--- |
define i32 @fooTail(i32 (i32)* nocapture %f1) {
entry:
%0 = tail call i32 %f1(i32 14)
ret i32 %0
}
...
---
name: fooTail
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: gpr32, preferred-register: '' }
- { id: 1, class: gpr32, preferred-register: '' }
liveins:
- { reg: '%a0', virtual-reg: '%0' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
savePoint: ''
restorePoint: ''
fixedStack:
stack:
constants:
body: |
bb.0.entry:
liveins: %a0
%0:gpr32 = COPY %a0
%1:gpr32 = ADDiu $zero, 14
%a0 = COPY %1
TAILCALLREG %0, csr_o32, implicit-def dead %at, implicit %a0
...
|
