derek.holloway
7502bf64a4
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52 lines
2.6 KiB
LLVM
52 lines
2.6 KiB
LLVM
; RUN: opt -passes='print<alias-sets>' -alias-set-saturation-threshold=4 -S -o - < %s 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=NOSAT
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; RUN: opt -passes='print<alias-sets>' -alias-set-saturation-threshold=3 -S -o - < %s 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=SAT
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; CHECK-LABEL: 'nomerge'
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; CHECK: AliasSet[{{.*}}, 1] must alias, Mod Memory locations: (ptr %a, LocationSize::precise(4))
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; CHECK: AliasSet[{{.*}}, 2] may alias, Mod Memory locations: (ptr %b, LocationSize::precise(4)), (ptr %b1, LocationSize::precise(4))
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define void @nomerge(i32 %k) {
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%a = alloca i32
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%b = alloca [10 x i32]
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store i32 1, ptr %a
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store i32 2, ptr %b
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%b1 = getelementptr i32, ptr %b, i32 %k
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store i32 3, ptr %b1
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ret void
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}
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; CHECK-LABEL: 'mergemay'
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; NOSAT: AliasSet[{{.*}}, 3] may alias, Mod Memory locations: (ptr %a, LocationSize::precise(4)), (ptr %a1, LocationSize::precise(4)), (ptr %a2, LocationSize::precise(4))
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; NOSAT: AliasSet[{{.*}}, 1] must alias, Mod Memory locations: (ptr %b, LocationSize::precise(4))
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; SAT: AliasSet[{{.*}}, 3] may alias, Mod forwarding to 0x[[FWD:[0-9a-f]*]]
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; SAT: AliasSet[{{.*}}, 1] must alias, Mod forwarding to 0x[[FWD]]
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; SAT: AliasSet[0x[[FWD]], 2] may alias, Mod/Ref Memory locations: (ptr %a, LocationSize::precise(4)), (ptr %a1, LocationSize::precise(4)), (ptr %a2, LocationSize::precise(4)), (ptr %b, LocationSize::precise(4))
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define void @mergemay(i32 %k, i32 %l) {
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%a = alloca i32
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%b = alloca i32
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store i32 1, ptr %a
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store i32 2, ptr %b
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%a1 = getelementptr i32, ptr %a, i32 %k
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store i32 2, ptr %a1
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%a2 = getelementptr i32, ptr %a, i32 %l
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store i32 2, ptr %a2
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ret void
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}
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; CHECK-LABEL: 'mergemust'
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; NOSAT: AliasSet[{{.*}}, 1] must alias, Mod Memory locations: (ptr %a, LocationSize::precise(4))
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; NOSAT: AliasSet[{{.*}}, 1] must alias, Mod Memory locations: (ptr %b, LocationSize::precise(4))
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; NOSAT: AliasSet[{{.*}}, 2] may alias, Mod Memory locations: (ptr %c, LocationSize::precise(4)), (ptr %d, LocationSize::precise(4))
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; SAT: AliasSet[{{.*}}, 1] must alias, Mod forwarding to 0x[[FWD:[0-9a-f]*]]
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; SAT: AliasSet[{{.*}}, 1] must alias, Mod forwarding to 0x[[FWD]]
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; SAT: AliasSet[{{.*}}, 2] may alias, Mod forwarding to 0x[[FWD]]
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; SAT: AliasSet[0x[[FWD]], 3] may alias, Mod/Ref Memory locations: (ptr %a, LocationSize::precise(4)), (ptr %b, LocationSize::precise(4)), (ptr %c, LocationSize::precise(4)), (ptr %d, LocationSize::precise(4))
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define void @mergemust(ptr %c, ptr %d) {
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%a = alloca i32
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%b = alloca i32
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store i32 1, ptr %a
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store i32 2, ptr %b
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store i32 3, ptr %c
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store i32 4, ptr %d
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ret void
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}
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