Temporarily Revert "Add basic loop fusion pass."

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

1 files changed, 0 insertions, 606 deletions

diff --git a/llvm/test/Transforms/InstCombine/with_overflow.ll b/llvm/test/Transforms/InstCombine/with_overflow.ll
deleted file mode 100644
index e80da2afe2f..00000000000
--- a/llvm/test/Transforms/InstCombine/with_overflow.ll
+++ /dev/null
@@ -1,606 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -instcombine -S < %s | FileCheck %s
-
-declare { i8, i1 } @llvm.uadd.with.overflow.i8(i8, i8) nounwind readnone
-declare { i8, i1 } @llvm.sadd.with.overflow.i8(i8, i8) nounwind readnone
-declare { i8, i1 } @llvm.usub.with.overflow.i8(i8, i8) nounwind readnone
-declare { i8, i1 } @llvm.ssub.with.overflow.i8(i8, i8) nounwind readnone
-declare { i8, i1 } @llvm.umul.with.overflow.i8(i8, i8) nounwind readnone
-declare { i8, i1 } @llvm.smul.with.overflow.i8(i8, i8) nounwind readnone
-declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32) nounwind readnone
-declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) nounwind readnone
-declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32) nounwind readnone
-declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone
-declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32) nounwind readnone
-declare { i32, i1 } @llvm.umul.with.overflow.i32(i32, i32) nounwind readnone
-
-define i8 @uaddtest1(i8 %A, i8 %B) {
-; CHECK-LABEL: @uaddtest1(
-; CHECK-NEXT:    [[Y:%.*]] = add i8 [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT:    ret i8 [[Y]]
-;
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
-  %y = extractvalue { i8, i1 } %x, 0
-  ret i8 %y
-}
-
-define i8 @uaddtest2(i8 %A, i8 %B, i1* %overflowPtr) {
-; CHECK-LABEL: @uaddtest2(
-; CHECK-NEXT:    [[AND_A:%.*]] = and i8 [[A:%.*]], 127
-; CHECK-NEXT:    [[AND_B:%.*]] = and i8 [[B:%.*]], 127
-; CHECK-NEXT:    [[X:%.*]] = add nuw i8 [[AND_A]], [[AND_B]]
-; CHECK-NEXT:    store i1 false, i1* [[OVERFLOWPTR:%.*]], align 1
-; CHECK-NEXT:    ret i8 [[X]]
-;
-  %and.A = and i8 %A, 127
-  %and.B = and i8 %B, 127
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %and.A, i8 %and.B)
-  %y = extractvalue { i8, i1 } %x, 0
-  %z = extractvalue { i8, i1 } %x, 1
-  store i1 %z, i1* %overflowPtr
-  ret i8 %y
-}
-
-define i8 @uaddtest3(i8 %A, i8 %B, i1* %overflowPtr) {
-; CHECK-LABEL: @uaddtest3(
-; CHECK-NEXT:    [[OR_A:%.*]] = or i8 [[A:%.*]], -128
-; CHECK-NEXT:    [[OR_B:%.*]] = or i8 [[B:%.*]], -128
-; CHECK-NEXT:    [[X:%.*]] = add i8 [[OR_A]], [[OR_B]]
-; CHECK-NEXT:    store i1 true, i1* [[OVERFLOWPTR:%.*]], align 1
-; CHECK-NEXT:    ret i8 [[X]]
-;
-  %or.A = or i8 %A, -128
-  %or.B = or i8 %B, -128
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %or.A, i8 %or.B)
-  %y = extractvalue { i8, i1 } %x, 0
-  %z = extractvalue { i8, i1 } %x, 1
-  store i1 %z, i1* %overflowPtr
-  ret i8 %y
-}
-
-define i8 @uaddtest4(i8 %A, i1* %overflowPtr) {
-; CHECK-LABEL: @uaddtest4(
-; CHECK-NEXT:    ret i8 undef
-;
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 undef, i8 %A)
-  %y = extractvalue { i8, i1 } %x, 0
-  %z = extractvalue { i8, i1 } %x, 1
-  store i1 %z, i1* %overflowPtr
-  ret i8 %y
-}
-
-define i8 @uaddtest5(i8 %A, i1* %overflowPtr) {
-; CHECK-LABEL: @uaddtest5(
-; CHECK-NEXT:    store i1 false, i1* [[OVERFLOWPTR:%.*]], align 1
-; CHECK-NEXT:    ret i8 [[A:%.*]]
-;
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 0, i8 %A)
-  %y = extractvalue { i8, i1 } %x, 0
-  %z = extractvalue { i8, i1 } %x, 1
-  store i1 %z, i1* %overflowPtr
-  ret i8 %y
-}
-
-define i1 @uaddtest6(i8 %A, i8 %B) {
-; CHECK-LABEL: @uaddtest6(
-; CHECK-NEXT:    [[Z:%.*]] = icmp ugt i8 [[A:%.*]], 3
-; CHECK-NEXT:    ret i1 [[Z]]
-;
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %A, i8 -4)
-  %z = extractvalue { i8, i1 } %x, 1
-  ret i1 %z
-}
-
-define i8 @uaddtest7(i8 %A, i8 %B) {
-; CHECK-LABEL: @uaddtest7(
-; CHECK-NEXT:    [[Z:%.*]] = add i8 [[A:%.*]], [[B:%.*]]
-; CHECK-NEXT:    ret i8 [[Z]]
-;
-  %x = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
-  %z = extractvalue { i8, i1 } %x, 0
-  ret i8 %z
-}
-
-; PR20194
-define { i32, i1 } @saddtest_nsw(i8 %a, i8 %b) {
-; CHECK-LABEL: @saddtest_nsw(
-; CHECK-NEXT:    [[AA:%.*]] = sext i8 [[A:%.*]] to i32
-; CHECK-NEXT:    [[BB:%.*]] = sext i8 [[B:%.*]] to i32
-; CHECK-NEXT:    [[X:%.*]] = add nsw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = sext i8 %a to i32
-  %bb = sext i8 %b to i32
-  %x = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @uaddtest_nuw(i32 %a, i32 %b) {
-; CHECK-LABEL: @uaddtest_nuw(
-; CHECK-NEXT:    [[AA:%.*]] = and i32 [[A:%.*]], 2147483647
-; CHECK-NEXT:    [[BB:%.*]] = and i32 [[B:%.*]], 2147483647
-; CHECK-NEXT:    [[X:%.*]] = add nuw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = and i32 %a, 2147483647
-  %bb = and i32 %b, 2147483647
-  %x = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @ssubtest_nsw(i8 %a, i8 %b) {
-; CHECK-LABEL: @ssubtest_nsw(
-; CHECK-NEXT:    [[AA:%.*]] = sext i8 [[A:%.*]] to i32
-; CHECK-NEXT:    [[BB:%.*]] = sext i8 [[B:%.*]] to i32
-; CHECK-NEXT:    [[X:%.*]] = sub nsw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = sext i8 %a to i32
-  %bb = sext i8 %b to i32
-  %x = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @usubtest_nuw(i32 %a, i32 %b) {
-; CHECK-LABEL: @usubtest_nuw(
-; CHECK-NEXT:    [[AA:%.*]] = or i32 [[A:%.*]], -2147483648
-; CHECK-NEXT:    [[BB:%.*]] = and i32 [[B:%.*]], 2147483647
-; CHECK-NEXT:    [[X:%.*]] = sub nuw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = or i32 %a, 2147483648
-  %bb = and i32 %b, 2147483647
-  %x = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @smultest1_nsw(i32 %a, i32 %b) {
-; CHECK-LABEL: @smultest1_nsw(
-; CHECK-NEXT:    [[AA:%.*]] = and i32 [[A:%.*]], 4095
-; CHECK-NEXT:    [[BB:%.*]] = and i32 [[B:%.*]], 524287
-; CHECK-NEXT:    [[X:%.*]] = mul nuw nsw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = and i32 %a, 4095 ; 0xfff
-  %bb = and i32 %b, 524287; 0x7ffff
-  %x = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @smultest2_nsw(i32 %a, i32 %b) {
-; CHECK-LABEL: @smultest2_nsw(
-; CHECK-NEXT:    [[AA:%.*]] = ashr i32 [[A:%.*]], 16
-; CHECK-NEXT:    [[BB:%.*]] = ashr i32 [[B:%.*]], 16
-; CHECK-NEXT:    [[X:%.*]] = mul nsw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = ashr i32 %a, 16
-  %bb = ashr i32 %b, 16
-  %x = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @smultest3_sw(i32 %a, i32 %b) {
-; CHECK-LABEL: @smultest3_sw(
-; CHECK-NEXT:    [[AA:%.*]] = ashr i32 [[A:%.*]], 16
-; CHECK-NEXT:    [[BB:%.*]] = ashr i32 [[B:%.*]], 15
-; CHECK-NEXT:    [[X:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[AA]], i32 [[BB]])
-; CHECK-NEXT:    ret { i32, i1 } [[X]]
-;
-  %aa = ashr i32 %a, 16
-  %bb = ashr i32 %b, 15
-  %x = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @umultest_nuw(i32 %a, i32 %b) {
-; CHECK-LABEL: @umultest_nuw(
-; CHECK-NEXT:    [[AA:%.*]] = and i32 [[A:%.*]], 65535
-; CHECK-NEXT:    [[BB:%.*]] = and i32 [[B:%.*]], 65535
-; CHECK-NEXT:    [[X:%.*]] = mul nuw i32 [[AA]], [[BB]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = and i32 %a, 65535 ; 0xffff
-  %bb = and i32 %b, 65535 ; 0xffff
-  %x = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %aa, i32 %bb)
-  ret { i32, i1 } %x
-}
-
-define i8 @umultest1(i8 %A, i1* %overflowPtr) {
-; CHECK-LABEL: @umultest1(
-; CHECK-NEXT:    store i1 false, i1* [[OVERFLOWPTR:%.*]], align 1
-; CHECK-NEXT:    ret i8 0
-;
-  %x = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 0, i8 %A)
-  %y = extractvalue { i8, i1 } %x, 0
-  %z = extractvalue { i8, i1 } %x, 1
-  store i1 %z, i1* %overflowPtr
-  ret i8 %y
-}
-
-define i8 @umultest2(i8 %A, i1* %overflowPtr) {
-; CHECK-LABEL: @umultest2(
-; CHECK-NEXT:    store i1 false, i1* [[OVERFLOWPTR:%.*]], align 1
-; CHECK-NEXT:    ret i8 [[A:%.*]]
-;
-  %x = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 1, i8 %A)
-  %y = extractvalue { i8, i1 } %x, 0
-  %z = extractvalue { i8, i1 } %x, 1
-  store i1 %z, i1* %overflowPtr
-  ret i8 %y
-}
-
-define i32 @umultest3(i32 %n) nounwind {
-; CHECK-LABEL: @umultest3(
-; CHECK-NEXT:    [[SHR:%.*]] = lshr i32 [[N:%.*]], 2
-; CHECK-NEXT:    [[MUL:%.*]] = mul nuw i32 [[SHR]], 3
-; CHECK-NEXT:    ret i32 [[MUL]]
-;
-  %shr = lshr i32 %n, 2
-  %mul = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %shr, i32 3)
-  %ov = extractvalue { i32, i1 } %mul, 1
-  %res = extractvalue { i32, i1 } %mul, 0
-  %ret = select i1 %ov, i32 -1, i32 %res
-  ret i32 %ret
-}
-
-define i32 @umultest4(i32 %n) nounwind {
-; CHECK-LABEL: @umultest4(
-; CHECK-NEXT:    [[SHR:%.*]] = lshr i32 [[N:%.*]], 1
-; CHECK-NEXT:    [[MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[SHR]], i32 4)
-; CHECK-NEXT:    [[OV:%.*]] = extractvalue { i32, i1 } [[MUL]], 1
-; CHECK-NEXT:    [[RES:%.*]] = extractvalue { i32, i1 } [[MUL]], 0
-; CHECK-NEXT:    [[RET:%.*]] = select i1 [[OV]], i32 -1, i32 [[RES]]
-; CHECK-NEXT:    ret i32 [[RET]]
-;
-  %shr = lshr i32 %n, 1
-  %mul = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %shr, i32 4)
-  %ov = extractvalue { i32, i1 } %mul, 1
-  %res = extractvalue { i32, i1 } %mul, 0
-  %ret = select i1 %ov, i32 -1, i32 %res
-  ret i32 %ret
-}
-
-define { i32, i1 } @umultest5(i32 %x, i32 %y) nounwind {
-; CHECK-LABEL: @umultest5(
-; CHECK-NEXT:    [[OR_X:%.*]] = or i32 [[X:%.*]], -2147483648
-; CHECK-NEXT:    [[OR_Y:%.*]] = or i32 [[Y:%.*]], -2147483648
-; CHECK-NEXT:    [[MUL:%.*]] = mul i32 [[OR_X]], [[OR_Y]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 true }, i32 [[MUL]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %or_x = or i32 %x, 2147483648
-  %or_y = or i32 %y, 2147483648
-  %mul = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %or_x, i32 %or_y)
-  ret { i32, i1 } %mul
-}
-
-define i1 @overflow_div_add(i32 %v1, i32 %v2) nounwind {
-; CHECK-LABEL: @overflow_div_add(
-; CHECK-NEXT:    ret i1 false
-;
-  %div = sdiv i32 %v1, 2
-  %t = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %div, i32 1)
-  %obit = extractvalue { i32, i1 } %t, 1
-  ret i1 %obit
-}
-
-define i1 @overflow_div_sub(i32 %v1, i32 %v2) nounwind {
-  ; Check cases where the known sign bits are larger than the word size.
-; CHECK-LABEL: @overflow_div_sub(
-; CHECK-NEXT:    ret i1 false
-;
-  %a = ashr i32 %v1, 18
-  %div = sdiv i32 %a, 65536
-  %t = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %div, i32 1)
-  %obit = extractvalue { i32, i1 } %t, 1
-  ret i1 %obit
-}
-
-define i1 @overflow_mod_mul(i32 %v1, i32 %v2) nounwind {
-; CHECK-LABEL: @overflow_mod_mul(
-; CHECK-NEXT:    ret i1 false
-;
-  %rem = srem i32 %v1, 1000
-  %t = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %rem, i32 %rem)
-  %obit = extractvalue { i32, i1 } %t, 1
-  ret i1 %obit
-}
-
-define i1 @overflow_mod_overflow_mul(i32 %v1, i32 %v2) nounwind {
-; CHECK-LABEL: @overflow_mod_overflow_mul(
-; CHECK-NEXT:    [[REM:%.*]] = srem i32 [[V1:%.*]], 65537
-; CHECK-NEXT:    [[T:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[REM]], i32 [[REM]])
-; CHECK-NEXT:    [[OBIT:%.*]] = extractvalue { i32, i1 } [[T]], 1
-; CHECK-NEXT:    ret i1 [[OBIT]]
-;
-  %rem = srem i32 %v1, 65537
-  ; This may overflow because the result of the mul operands may be greater than 16bits
-  ; and the result greater than 32.
-  %t = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %rem, i32 %rem)
-  %obit = extractvalue { i32, i1 } %t, 1
-  ret i1 %obit
-}
-
-define { i32, i1 } @ssubtest_reorder(i8 %a) {
-; CHECK-LABEL: @ssubtest_reorder(
-; CHECK-NEXT:    [[AA:%.*]] = sext i8 [[A:%.*]] to i32
-; CHECK-NEXT:    [[X:%.*]] = sub nsw i32 0, [[AA]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[X]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[TMP1]]
-;
-  %aa = sext i8 %a to i32
-  %x = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 0, i32 %aa)
-  ret { i32, i1 } %x
-}
-
-define { i32, i1 } @never_overflows_ssub_test0(i32 %a) {
-; CHECK-LABEL: @never_overflows_ssub_test0(
-; CHECK-NEXT:    [[X:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[A:%.*]], 0
-; CHECK-NEXT:    ret { i32, i1 } [[X]]
-;
-  %x = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 0)
-  ret { i32, i1 } %x
-}
-
-define i1 @uadd_res_ult_x(i32 %x, i32 %y, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ult_x(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 [[Y:%.*]])
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp ult i32 [[C]], [[X]]
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ult i32 %c, %x
-  ret i1 %d
-}
-
-define i1 @uadd_res_ult_y(i32 %x, i32 %y, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ult_y(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 [[Y:%.*]])
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp ult i32 [[C]], [[Y]]
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ult i32 %c, %y
-  ret i1 %d
-}
-
-define i1 @uadd_res_ugt_x(i32 %xx, i32 %y, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ugt_x(
-; CHECK-NEXT:    [[X:%.*]] = urem i32 42, [[XX:%.*]]
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X]], i32 [[Y:%.*]])
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp ugt i32 [[X]], [[C]]
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %x = urem i32 42, %xx ; Thwart complexity-based canonicalization
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ugt i32 %x, %c
-  ret i1 %d
-}
-
-define i1 @uadd_res_ugt_y(i32 %x, i32 %yy, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ugt_y(
-; CHECK-NEXT:    [[Y:%.*]] = urem i32 42, [[YY:%.*]]
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 [[Y]])
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp ugt i32 [[Y]], [[C]]
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %y = urem i32 42, %yy ; Thwart complexity-based canonicalization
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ugt i32 %y, %c
-  ret i1 %d
-}
-
-define i1 @uadd_res_ult_const(i32 %x, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ult_const(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 42)
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp ult i32 [[C]], 42
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 42)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ult i32 %c, 42
-  ret i1 %d
-}
-
-define i1 @uadd_res_ult_const_one(i32 %x, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ult_const_one(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 1)
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp eq i32 [[C]], 0
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 1)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ult i32 %c, 1
-  ret i1 %d
-}
-
-define i1 @uadd_res_ult_const_minus_one(i32 %x, i1* %p) nounwind {
-; CHECK-LABEL: @uadd_res_ult_const_minus_one(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 -1)
-; CHECK-NEXT:    [[B:%.*]] = extractvalue { i32, i1 } [[A]], 1
-; CHECK-NEXT:    store i1 [[B]], i1* [[P:%.*]], align 1
-; CHECK-NEXT:    [[C:%.*]] = extractvalue { i32, i1 } [[A]], 0
-; CHECK-NEXT:    [[D:%.*]] = icmp ne i32 [[C]], -1
-; CHECK-NEXT:    ret i1 [[D]]
-;
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 -1)
-  %b = extractvalue { i32, i1 } %a, 1
-  store i1 %b, i1* %p
-  %c = extractvalue { i32, i1 } %a, 0
-  %d = icmp ult i32 %c, -1
-  ret i1 %d
-}
-
-define { i32, i1 } @sadd_canonicalize_constant_arg0(i32 %x) nounwind {
-; CHECK-LABEL: @sadd_canonicalize_constant_arg0(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[X:%.*]], i32 42)
-; CHECK-NEXT:    ret { i32, i1 } [[A]]
-;
-  %a = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 42, i32 %x)
-  ret { i32, i1 } %a
-}
-
-define { i32, i1 } @uadd_canonicalize_constant_arg0(i32 %x) nounwind {
-; CHECK-LABEL: @uadd_canonicalize_constant_arg0(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X:%.*]], i32 42)
-; CHECK-NEXT:    ret { i32, i1 } [[A]]
-;
-  %a = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 42, i32 %x)
-  ret { i32, i1 } %a
-}
-
-define { i32, i1 } @ssub_no_canonicalize_constant_arg0(i32 %x) nounwind {
-; CHECK-LABEL: @ssub_no_canonicalize_constant_arg0(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 42, i32 [[X:%.*]])
-; CHECK-NEXT:    ret { i32, i1 } [[A]]
-;
-  %a = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 42, i32 %x)
-  ret { i32, i1 } %a
-}
-
-define { i32, i1 } @usub_no_canonicalize_constant_arg0(i32 %x) nounwind {
-; CHECK-LABEL: @usub_no_canonicalize_constant_arg0(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 42, i32 [[X:%.*]])
-; CHECK-NEXT:    ret { i32, i1 } [[A]]
-;
-  %a = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 42, i32 %x)
-  ret { i32, i1 } %a
-}
-
-define { i32, i1 } @smul_canonicalize_constant_arg0(i32 %x) nounwind {
-; CHECK-LABEL: @smul_canonicalize_constant_arg0(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[X:%.*]], i32 42)
-; CHECK-NEXT:    ret { i32, i1 } [[A]]
-;
-  %a = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 42, i32 %x)
-  ret { i32, i1 } %a
-}
-
-define { i32, i1 } @umul_canonicalize_constant_arg0(i32 %x) nounwind {
-; CHECK-LABEL: @umul_canonicalize_constant_arg0(
-; CHECK-NEXT:    [[A:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[X:%.*]], i32 42)
-; CHECK-NEXT:    ret { i32, i1 } [[A]]
-;
-  %a = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 42, i32 %x)
-  ret { i32, i1 } %a
-}
-
-; Always overflow tests
-
-define { i8, i1 } @uadd_always_overflow(i8 %x) nounwind {
-; CHECK-LABEL: @uadd_always_overflow(
-; CHECK-NEXT:    [[Y:%.*]] = or i8 [[X:%.*]], -64
-; CHECK-NEXT:    [[A:%.*]] = add nsw i8 [[Y]], 64
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i8, i1 } { i8 undef, i1 true }, i8 [[A]], 0
-; CHECK-NEXT:    ret { i8, i1 } [[TMP1]]
-;
-  %y = or i8 %x, 192
-  %a = call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %y, i8 64)
-  ret { i8, i1 } %a
-}
-
-define { i8, i1 } @usub_always_overflow(i8 %x) nounwind {
-; CHECK-LABEL: @usub_always_overflow(
-; CHECK-NEXT:    [[Y:%.*]] = or i8 [[X:%.*]], 64
-; CHECK-NEXT:    [[A:%.*]] = sub nsw i8 63, [[Y]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i8, i1 } { i8 undef, i1 true }, i8 [[A]], 0
-; CHECK-NEXT:    ret { i8, i1 } [[TMP1]]
-;
-  %y = or i8 %x, 64
-  %a = call { i8, i1 } @llvm.usub.with.overflow.i8(i8 63, i8 %y)
-  ret { i8, i1 } %a
-}
-
-define { i8, i1 } @umul_always_overflow(i8 %x) nounwind {
-; CHECK-LABEL: @umul_always_overflow(
-; CHECK-NEXT:    [[A:%.*]] = shl i8 [[X:%.*]], 1
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i8, i1 } { i8 undef, i1 true }, i8 [[A]], 0
-; CHECK-NEXT:    ret { i8, i1 } [[TMP1]]
-;
-  %y = or i8 %x, 128
-  %a = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 %y, i8 2)
-  ret { i8, i1 } %a
-}
-
-define { i8, i1 } @sadd_always_overflow(i8 %x) nounwind {
-; CHECK-LABEL: @sadd_always_overflow(
-; CHECK-NEXT:    [[C:%.*]] = icmp sgt i8 [[X:%.*]], 100
-; CHECK-NEXT:    [[Y:%.*]] = select i1 [[C]], i8 [[X]], i8 100
-; CHECK-NEXT:    [[A:%.*]] = add nuw i8 [[Y]], 28
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i8, i1 } { i8 undef, i1 true }, i8 [[A]], 0
-; CHECK-NEXT:    ret { i8, i1 } [[TMP1]]
-;
-  %c = icmp sgt i8 %x, 100
-  %y = select i1 %c, i8 %x, i8 100
-  %a = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 %y, i8 28)
-  ret { i8, i1 } %a
-}
-
-define { i8, i1 } @ssub_always_overflow(i8 %x) nounwind {
-; CHECK-LABEL: @ssub_always_overflow(
-; CHECK-NEXT:    [[C:%.*]] = icmp sgt i8 [[X:%.*]], 29
-; CHECK-NEXT:    [[Y:%.*]] = select i1 [[C]], i8 [[X]], i8 29
-; CHECK-NEXT:    [[A:%.*]] = sub nuw i8 -100, [[Y]]
-; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i8, i1 } { i8 undef, i1 true }, i8 [[A]], 0
-; CHECK-NEXT:    ret { i8, i1 } [[TMP1]]
-;
-  %c = icmp sgt i8 %x, 29
-  %y = select i1 %c, i8 %x, i8 29
-  %a = call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 -100, i8 %y)
-  ret { i8, i1 } %a
-}
-
-define { i8, i1 } @smul_always_overflow(i8 %x) nounwind {
-; CHECK-LABEL: @smul_always_overflow(
-; CHECK-NEXT:    [[C:%.*]] = icmp sgt i8 [[X:%.*]], 100
-; CHECK-NEXT:    [[Y:%.*]] = select i1 [[C]], i8 [[X]], i8 100
-; CHECK-NEXT:    [[A:%.*]] = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 [[Y]], i8 2)
-; CHECK-NEXT:    ret { i8, i1 } [[A]]
-;
-  %c = icmp sgt i8 %x, 100
-  %y = select i1 %c, i8 %x, i8 100
-  %a = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %y, i8 2)
-  ret { i8, i1 } %a
-}