mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
0ac6160f34
Consider cases when register R is known to be zero/non-zero, or when it is defined by a C2_muxii instruction. llvm-svn: 338251
155 lines
3.8 KiB
YAML
155 lines
3.8 KiB
YAML
# RUN: llc -march=hexagon -run-pass hexagon-bit-simplify -o - %s | FileCheck %s
|
|
|
|
--- |
|
|
@g0 = global i32 0, align 4
|
|
|
|
define i32 @f0() { ret i32 0 }
|
|
define i32 @f1() { ret i32 0 }
|
|
define i32 @f2() { ret i32 0 }
|
|
define i32 @f3() { ret i32 0 }
|
|
define i32 @f4() { ret i32 0 }
|
|
define i32 @f5() { ret i32 0 }
|
|
define i32 @f6() { ret i32 0 }
|
|
define i32 @f7() { ret i32 0 }
|
|
...
|
|
|
|
# Case 0: is-zero with known zero register
|
|
# CHECK-LABEL: name: f0
|
|
# CHECK: %[[R00:[0-9]+]]:intregs = A2_tfrsi 1
|
|
# CHECK: $r0 = COPY %[[R00]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f0
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
%0:intregs = A2_tfrsi 0
|
|
%2:intregs = A4_rcmpeqi killed %0, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
# Case 1: is-zero with known non-zero register
|
|
# CHECK-LABEL: name: f1
|
|
# CHECK: %[[R10:[0-9]+]]:intregs = A2_tfrsi 0
|
|
# CHECK: $r0 = COPY %[[R10]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f1
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
%0:intregs = A2_tfrsi 128
|
|
%2:intregs = A4_rcmpeqi killed %0, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
# Case 2: is-not-zero with known zero register
|
|
# CHECK-LABEL: name: f2
|
|
# CHECK: %[[R20:[0-9]+]]:intregs = A2_tfrsi 0
|
|
# CHECK: $r0 = COPY %[[R20]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f2
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
%0:intregs = A2_tfrsi 0
|
|
%2:intregs = A4_rcmpneqi killed %0, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
# Case 3: is-not-zero with known non-zero register
|
|
# CHECK-LABEL: name: f3
|
|
# CHECK: %[[R30:[0-9]+]]:intregs = A2_tfrsi 1
|
|
# CHECK: $r0 = COPY %[[R30]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f3
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
%0:intregs = A2_tfrsi 1024
|
|
%2:intregs = A4_rcmpneqi killed %0, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
|
|
# Case 4: is-zero with mux(p, 1, 0)
|
|
# CHECK-LABEL: name: f4
|
|
# CHECK: %[[R40:[0-9]+]]:predregs = COPY $p0
|
|
# CHECK: %[[R41:[0-9]+]]:intregs = C2_muxii %[[R40]], 0, 1
|
|
# CHECK: $r0 = COPY %[[R41]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f4
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
liveins: $p0
|
|
%0:predregs = COPY $p0
|
|
%1:intregs = C2_muxii %0, 1, 0
|
|
%2:intregs = A4_rcmpeqi killed %1, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
# Case 5: is-zero with mux(p, 0, 1)
|
|
# CHECK-LABEL: name: f5
|
|
# CHECK: %[[R50:[0-9]+]]:predregs = COPY $p0
|
|
# CHECK: %[[R51:[0-9]+]]:intregs = C2_muxii %[[R50]], 1, 0
|
|
# CHECK: $r0 = COPY %[[R51]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f5
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
liveins: $p0
|
|
%0:predregs = COPY $p0
|
|
%1:intregs = C2_muxii %0, 0, 1
|
|
%2:intregs = A4_rcmpeqi killed %1, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
# Case 6: is-not-zero with mux(p, 1, 2)
|
|
# CHECK-LABEL: name: f6
|
|
# CHECK: %[[R60:[0-9]+]]:intregs = A2_tfrsi 1
|
|
# CHECK: $r0 = COPY %[[R60]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f6
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
liveins: $p0
|
|
%0:predregs = COPY $p0
|
|
%1:intregs = C2_muxii %0, 1, 2
|
|
%2:intregs = A4_rcmpneqi killed %1, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|
|
# Case 7: is-not-zero with mux(p, @g0, 2)
|
|
# CHECK-LABEL: name: f7
|
|
# CHECK: %[[R70:[0-9]+]]:intregs = A2_tfrsi 1
|
|
# CHECK: $r0 = COPY %[[R70]]
|
|
# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
|
|
name: f7
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
liveins: $p0
|
|
%0:predregs = COPY $p0
|
|
%1:intregs = C2_muxii %0, @g0, 2
|
|
%2:intregs = A4_rcmpneqi killed %1, 0
|
|
$r0 = COPY %2
|
|
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
|
|
...
|
|
|