93 lines
3.0 KiB
YAML
93 lines
3.0 KiB
YAML
# RUN: llc -mtriple powerpc64-unknown-linux-gnu -run-pass livevars -run-pass phi-node-elimination -verify-machineinstrs -o - %s | FileCheck %s
|
|
|
|
# This test case was originally known as
|
|
# test/CodeGen/PowerPC/2013-07-01-PHIElimBug.ll
|
|
#
|
|
# It was discovered that the original test case no longer reproduced the bug
|
|
# from PR16508 (solved in rL185363). That could have been resolved by adding
|
|
# -O1 (or possibly -O0) to the run line, but instead the test case was
|
|
# converted into this .mir test case. Having it as a .mir test should make it
|
|
# less sensitive to changes in earlier passes.
|
|
|
|
--- |
|
|
target datalayout = "E-m:e-i64:64-n32:64"
|
|
target triple = "powerpc64-unknown-linux-gnu"
|
|
|
|
@g_51 = external global [8 x i32], align 4
|
|
define void @func_7() {
|
|
bb.0:
|
|
ret void
|
|
}
|
|
...
|
|
---
|
|
name: func_7
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
liveins: $x2
|
|
|
|
%0:g8rc_and_g8rc_nox0 = ADDIStocHA8 $x2, @g_51
|
|
%1:g8rc_and_g8rc_nox0 = LDtocL @g_51, killed %0, implicit $x2 :: (load 8)
|
|
%2:gprc = LI 0
|
|
%3:crrc = CMPLWI killed %2, 0
|
|
BCC 76, killed %3, %bb.2
|
|
|
|
bb.1:
|
|
%4:g8rc = ADDI8 killed %1, 24
|
|
B %bb.4
|
|
|
|
bb.2:
|
|
%5:g8rc = ADDI8 killed %1, 24
|
|
%6:g8rc = LI8 0
|
|
%7:crrc = CMPLWI undef %8:gprc, 20
|
|
|
|
bb.3:
|
|
%9:g8rc = PHI %5, %bb.2, %10, %bb.3
|
|
%10:g8rc = PHI %6, %bb.2, undef %11:g8rc, %bb.3
|
|
BCC 68, %7, %bb.3
|
|
B %bb.4
|
|
|
|
bb.4:
|
|
%12:g8rc_and_g8rc_nox0 = PHI %4, %bb.1, %9, %bb.3
|
|
%13:g8rc = LI8 0
|
|
STW8 killed %13, 0, killed %12 :: (store 4)
|
|
BLR8 implicit $lr8, implicit $rm
|
|
|
|
...
|
|
|
|
# Original TR (and 2013-07-01-PHIElimBug.ll) was about verifier errors for bb.3.
|
|
#
|
|
# I got a feeling that we also need to have some checks to see that # the code
|
|
# is correct in some way. Hopefully this test case is stable enough to verify
|
|
# the full MIR like this.
|
|
#
|
|
# CHECK: bb.0:
|
|
# CHECK: %0:g8rc_and_g8rc_nox0 = ADDIStocHA8 $x2, @g_51
|
|
# CHECK-NEXT: %1:g8rc_and_g8rc_nox0 = LDtocL @g_51, killed %0, implicit killed $x2 :: (load 8)
|
|
# CHECK-NEXT: %2:gprc = LI 0
|
|
# CHECK-NEXT: %3:crrc = CMPLWI killed %2, 0
|
|
# CHECK-NEXT: BCC 76, killed %3, %bb.2
|
|
# CHECK: bb.1:
|
|
# CHECK: %4:g8rc = ADDI8 killed %1, 24
|
|
# CHECK-NEXT: %16:g8rc_and_g8rc_nox0 = COPY killed %4
|
|
# CHECK-NEXT: B %bb.4
|
|
# CHECK: bb.2:
|
|
# CHECK: %5:g8rc = ADDI8 killed %1, 24
|
|
# CHECK-NEXT: %6:g8rc = LI8 0
|
|
# CHECK-NEXT: %7:crrc = CMPLWI undef %8:gprc, 20
|
|
# CHECK-NEXT: %14:g8rc = COPY killed %5
|
|
# CHECK-NEXT: %15:g8rc = COPY killed %6
|
|
# CHECK: bb.3:
|
|
# CHECK: %10:g8rc = COPY killed %15
|
|
# CHECK-NEXT: %9:g8rc = COPY killed %14
|
|
# CHECK-NEXT: %14:g8rc = COPY killed %10
|
|
# CHECK-NEXT: %15:g8rc = IMPLICIT_DEF
|
|
# CHECK-NEXT: %16:g8rc_and_g8rc_nox0 = COPY killed %9
|
|
# CHECK-NEXT: BCC 68, %7, %bb.3
|
|
# CHECK-NEXT: B %bb.4
|
|
# CHECK: bb.4:
|
|
# CHECK: %12:g8rc_and_g8rc_nox0 = COPY killed %16
|
|
# CHECK-NEXT: %13:g8rc = LI8 0
|
|
# CHECK-NEXT: STW8 killed %13, 0, killed %12 :: (store 4)
|
|
# CHECK-NEXT: BLR8 implicit $lr8, implicit $rm
|