derek.holloway
7502bf64a4
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155 lines
3.8 KiB
YAML
155 lines
3.8 KiB
YAML
# RUN: llc -mtriple=hexagon -run-pass hexagon-bit-simplify -o - %s | FileCheck %s
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--- |
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@g0 = global i32 0, align 4
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define i32 @f0() { ret i32 0 }
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define i32 @f1() { ret i32 0 }
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define i32 @f2() { ret i32 0 }
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define i32 @f3() { ret i32 0 }
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define i32 @f4() { ret i32 0 }
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define i32 @f5() { ret i32 0 }
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define i32 @f6() { ret i32 0 }
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define i32 @f7() { ret i32 0 }
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...
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# Case 0: is-zero with known zero register
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# CHECK-LABEL: name: f0
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# CHECK: %[[R00:[0-9]+]]:intregs = A2_tfrsi 1
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# CHECK: $r0 = COPY %[[R00]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f0
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:intregs = A2_tfrsi 0
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%2:intregs = A4_rcmpeqi killed %0, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 1: is-zero with known non-zero register
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# CHECK-LABEL: name: f1
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# CHECK: %[[R10:[0-9]+]]:intregs = A2_tfrsi 0
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# CHECK: $r0 = COPY %[[R10]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f1
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:intregs = A2_tfrsi 128
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%2:intregs = A4_rcmpeqi killed %0, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 2: is-not-zero with known zero register
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# CHECK-LABEL: name: f2
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# CHECK: %[[R20:[0-9]+]]:intregs = A2_tfrsi 0
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# CHECK: $r0 = COPY %[[R20]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f2
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:intregs = A2_tfrsi 0
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%2:intregs = A4_rcmpneqi killed %0, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 3: is-not-zero with known non-zero register
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# CHECK-LABEL: name: f3
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# CHECK: %[[R30:[0-9]+]]:intregs = A2_tfrsi 1
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# CHECK: $r0 = COPY %[[R30]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f3
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tracksRegLiveness: true
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body: |
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bb.0:
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%0:intregs = A2_tfrsi 1024
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%2:intregs = A4_rcmpneqi killed %0, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 4: is-zero with mux(p, 1, 0)
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# CHECK-LABEL: name: f4
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# CHECK: %[[R40:[0-9]+]]:predregs = COPY $p0
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# CHECK: %[[R41:[0-9]+]]:intregs = C2_muxii %[[R40]], 0, 1
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# CHECK: $r0 = COPY %[[R41]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f4
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $p0
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%0:predregs = COPY $p0
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%1:intregs = C2_muxii %0, 1, 0
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%2:intregs = A4_rcmpeqi killed %1, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 5: is-zero with mux(p, 0, 1)
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# CHECK-LABEL: name: f5
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# CHECK: %[[R50:[0-9]+]]:predregs = COPY $p0
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# CHECK: %[[R51:[0-9]+]]:intregs = C2_muxii %[[R50]], 1, 0
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# CHECK: $r0 = COPY %[[R51]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f5
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $p0
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%0:predregs = COPY $p0
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%1:intregs = C2_muxii %0, 0, 1
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%2:intregs = A4_rcmpeqi killed %1, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 6: is-not-zero with mux(p, 1, 2)
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# CHECK-LABEL: name: f6
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# CHECK: %[[R60:[0-9]+]]:intregs = A2_tfrsi 1
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# CHECK: $r0 = COPY %[[R60]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f6
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $p0
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%0:predregs = COPY $p0
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%1:intregs = C2_muxii %0, 1, 2
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%2:intregs = A4_rcmpneqi killed %1, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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# Case 7: is-not-zero with mux(p, @g0, 2)
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# CHECK-LABEL: name: f7
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# CHECK: %[[R70:[0-9]+]]:intregs = A2_tfrsi 1
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# CHECK: $r0 = COPY %[[R70]]
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# CHECK: PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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name: f7
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $p0
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%0:predregs = COPY $p0
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%1:intregs = C2_muxii %0, @g0, 2
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%2:intregs = A4_rcmpneqi killed %1, 0
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$r0 = COPY %2
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PS_jmpret $r31, implicit-def dead $pc, implicit $r0
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...
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