forked from OSchip/llvm-project
69 lines
2.1 KiB
LLVM
69 lines
2.1 KiB
LLVM
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; RUN: opt -codegenprepare < %s -S | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-gnu"
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%struct.match_state = type { i64, i64 }
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; %add is also promoted by forking an extra sext.
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define void @promoteTwoOne(i32 %i, i32 %j, i64* %P1, i64* %P2 ) {
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; CHECK-LABEL: @promoteTwoOne
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; CHECK-LABEL: entry:
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; CHECK: %[[SEXT1:.*]] = sext i32 %i to i64
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; CHECK: %[[SEXT2:.*]] = sext i32 %j to i64
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; CHECK: %add = add nsw i64 %[[SEXT1]], %[[SEXT2]]
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entry:
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%add = add nsw i32 %i, %j
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%s = sext i32 %add to i64
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%addr1 = getelementptr inbounds i64, i64* %P1, i64 %s
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store i64 %s, i64* %addr1
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%s2 = sext i32 %i to i64
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%addr2 = getelementptr inbounds i64, i64* %P2, i64 %s2
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store i64 %s2, i64* %addr2
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ret void
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}
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; Both %add1 and %add2 are promoted by forking extra sexts.
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define void @promoteTwoTwo(i32 %i, i32 %j, i32 %k, i64* %P1, i64* %P2) {
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; CHECK-LABEL: @promoteTwoTwo
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; CHECK-LABEL:entry:
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; CHECK: %[[SEXT1:.*]] = sext i32 %j to i64
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; CHECK: %[[SEXT2:.*]] = sext i32 %i to i64
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; CHECK: %add1 = add nsw i64 %[[SEXT1]], %[[SEXT2]]
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; CHECK: %[[SEXT3:.*]] = sext i32 %k to i64
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; CHECK: %add2 = add nsw i64 %[[SEXT1]], %[[SEXT3]]
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entry:
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%add1 = add nsw i32 %j, %i
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%s = sext i32 %add1 to i64
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%addr1 = getelementptr inbounds i64, i64* %P1, i64 %s
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store i64 %s, i64* %addr1
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%add2 = add nsw i32 %j, %k
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%s2 = sext i32 %add2 to i64
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%addr2 = getelementptr inbounds i64, i64* %P2, i64 %s2
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store i64 %s2, i64* %addr2
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ret void
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}
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define i64 @promoteGEPSunk(i1 %cond, i64* %base, i32 %i) {
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; CHECK-LABEL: @promoteGEPSunk
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; CHECK-LABEL: entry:
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; CHECK: %[[SEXT:.*]] = sext i32 %i to i64
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; CHECK: %add = add nsw i64 %[[SEXT]], 1
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; CHECK: %add2 = add nsw i64 %[[SEXT]], 2
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entry:
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%add = add nsw i32 %i, 1
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%s = sext i32 %add to i64
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%addr = getelementptr inbounds i64, i64* %base, i64 %s
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%add2 = add nsw i32 %i, 2
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%s2 = sext i32 %add2 to i64
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%addr2 = getelementptr inbounds i64, i64* %base, i64 %s2
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br i1 %cond, label %if.then, label %if.then2
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if.then:
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%v = load i64, i64* %addr
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%v2 = load i64, i64* %addr2
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%r = add i64 %v, %v2
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ret i64 %r
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if.then2:
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ret i64 0;
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}
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