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Diffstat (limited to 'llvm/test/Transforms/InstCombine/overflow.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/overflow.ll | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/llvm/test/Transforms/InstCombine/overflow.ll b/llvm/test/Transforms/InstCombine/overflow.ll deleted file mode 100644 index f5558890d13..00000000000 --- a/llvm/test/Transforms/InstCombine/overflow.ll +++ /dev/null @@ -1,173 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt -S -instcombine < %s | FileCheck %s -; <rdar://problem/8558713> - -declare void @throwAnExceptionOrWhatever() - -define i32 @test1(i32 %a, i32 %b) nounwind ssp { -; CHECK-LABEL: @test1( -; CHECK-NEXT: entry: -; CHECK-NEXT: [[SADD:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[B:%.*]], i32 [[A:%.*]]) -; CHECK-NEXT: [[SADD_RESULT:%.*]] = extractvalue { i32, i1 } [[SADD]], 0 -; CHECK-NEXT: [[TMP0:%.*]] = extractvalue { i32, i1 } [[SADD]], 1 -; CHECK-NEXT: br i1 [[TMP0]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] -; CHECK: if.then: -; CHECK-NEXT: tail call void @throwAnExceptionOrWhatever() #2 -; CHECK-NEXT: br label [[IF_END]] -; CHECK: if.end: -; CHECK-NEXT: ret i32 [[SADD_RESULT]] -; -entry: - %conv = sext i32 %a to i64 - %conv2 = sext i32 %b to i64 - %add = add nsw i64 %conv2, %conv - %add.off = add i64 %add, 2147483648 - %0 = icmp ugt i64 %add.off, 4294967295 - br i1 %0, label %if.then, label %if.end - -if.then: - tail call void @throwAnExceptionOrWhatever() nounwind - br label %if.end - -if.end: - %conv9 = trunc i64 %add to i32 - ret i32 %conv9 -} - -; This form should not be promoted for two reasons: 1) it is unprofitable to -; promote it since the add.off instruction has another use, and 2) it is unsafe -; because the add-with-off makes the high bits of the original add live. - -define i32 @test2(i32 %a, i32 %b, i64* %P) nounwind ssp { -; CHECK-LABEL: @test2( -; CHECK-NEXT: entry: -; CHECK-NEXT: [[CONV:%.*]] = sext i32 [[A:%.*]] to i64 -; CHECK-NEXT: [[CONV2:%.*]] = sext i32 [[B:%.*]] to i64 -; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[CONV2]], [[CONV]] -; CHECK-NEXT: [[ADD_OFF:%.*]] = add nsw i64 [[ADD]], 2147483648 -; CHECK-NEXT: store i64 [[ADD_OFF]], i64* [[P:%.*]], align 4 -; CHECK-NEXT: [[TMP0:%.*]] = icmp ugt i64 [[ADD_OFF]], 4294967295 -; CHECK-NEXT: br i1 [[TMP0]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] -; CHECK: if.then: -; CHECK-NEXT: tail call void @throwAnExceptionOrWhatever() #2 -; CHECK-NEXT: br label [[IF_END]] -; CHECK: if.end: -; CHECK-NEXT: [[CONV9:%.*]] = trunc i64 [[ADD]] to i32 -; CHECK-NEXT: ret i32 [[CONV9]] -; -entry: - %conv = sext i32 %a to i64 - %conv2 = sext i32 %b to i64 - %add = add nsw i64 %conv2, %conv - %add.off = add i64 %add, 2147483648 - store i64 %add.off, i64* %P - %0 = icmp ugt i64 %add.off, 4294967295 - br i1 %0, label %if.then, label %if.end - -if.then: - tail call void @throwAnExceptionOrWhatever() nounwind - br label %if.end - -if.end: - %conv9 = trunc i64 %add to i32 - ret i32 %conv9 -} - -; PR8816 -; This is illegal to transform because the high bits of the original add are -; live out. -define i64 @test3(i32 %a, i32 %b) nounwind ssp { -; CHECK-LABEL: @test3( -; CHECK-NEXT: entry: -; CHECK-NEXT: [[CONV:%.*]] = sext i32 [[A:%.*]] to i64 -; CHECK-NEXT: [[CONV2:%.*]] = sext i32 [[B:%.*]] to i64 -; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[CONV2]], [[CONV]] -; CHECK-NEXT: [[ADD_OFF:%.*]] = add nsw i64 [[ADD]], 2147483648 -; CHECK-NEXT: [[TMP0:%.*]] = icmp ugt i64 [[ADD_OFF]], 4294967295 -; CHECK-NEXT: br i1 [[TMP0]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] -; CHECK: if.then: -; CHECK-NEXT: tail call void @throwAnExceptionOrWhatever() #2 -; CHECK-NEXT: br label [[IF_END]] -; CHECK: if.end: -; CHECK-NEXT: ret i64 [[ADD]] -; -entry: - %conv = sext i32 %a to i64 - %conv2 = sext i32 %b to i64 - %add = add nsw i64 %conv2, %conv - %add.off = add i64 %add, 2147483648 - %0 = icmp ugt i64 %add.off, 4294967295 - br i1 %0, label %if.then, label %if.end - -if.then: - tail call void @throwAnExceptionOrWhatever() nounwind - br label %if.end - -if.end: - ret i64 %add -} - -; Should be able to form an i8 sadd computed in an i32. - -define zeroext i8 @test4(i8 signext %a, i8 signext %b) nounwind ssp { -; CHECK-LABEL: @test4( -; CHECK-NEXT: entry: -; CHECK-NEXT: [[SADD:%.*]] = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 [[B:%.*]], i8 [[A:%.*]]) -; CHECK-NEXT: [[CMP:%.*]] = extractvalue { i8, i1 } [[SADD]], 1 -; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] -; CHECK: if.then: -; CHECK-NEXT: tail call void @throwAnExceptionOrWhatever() #2 -; CHECK-NEXT: unreachable -; CHECK: if.end: -; CHECK-NEXT: [[SADD_RESULT:%.*]] = extractvalue { i8, i1 } [[SADD]], 0 -; CHECK-NEXT: ret i8 [[SADD_RESULT]] -; -entry: - %conv = sext i8 %a to i32 - %conv2 = sext i8 %b to i32 - %add = add nsw i32 %conv2, %conv - %add4 = add nsw i32 %add, 128 - %cmp = icmp ugt i32 %add4, 255 - br i1 %cmp, label %if.then, label %if.end -if.then: - tail call void @throwAnExceptionOrWhatever() nounwind - unreachable - -if.end: - %conv7 = trunc i32 %add to i8 - ret i8 %conv7 -} - -; PR11438 -; This is @test1, but the operands are not sign-extended. Make sure -; we don't transform this case. - -define i32 @test8(i64 %a, i64 %b) nounwind ssp { -; CHECK-LABEL: @test8( -; CHECK-NEXT: entry: -; CHECK-NEXT: [[ADD:%.*]] = add i64 [[A:%.*]], [[B:%.*]] -; CHECK-NEXT: [[ADD_OFF:%.*]] = add i64 [[ADD]], 2147483648 -; CHECK-NEXT: [[TMP0:%.*]] = icmp ugt i64 [[ADD_OFF]], 4294967295 -; CHECK-NEXT: br i1 [[TMP0]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] -; CHECK: if.then: -; CHECK-NEXT: tail call void @throwAnExceptionOrWhatever() #2 -; CHECK-NEXT: br label [[IF_END]] -; CHECK: if.end: -; CHECK-NEXT: [[CONV9:%.*]] = trunc i64 [[ADD]] to i32 -; CHECK-NEXT: ret i32 [[CONV9]] -; -entry: - %add = add i64 %a, %b - %add.off = add i64 %add, 2147483648 - %0 = icmp ugt i64 %add.off, 4294967295 - br i1 %0, label %if.then, label %if.end - -if.then: - tail call void @throwAnExceptionOrWhatever() nounwind - br label %if.end - -if.end: - %conv9 = trunc i64 %add to i32 - ret i32 %conv9 -} - |
