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-rw-r--r--llvm/test/Transforms/InstSimplify/saturating-add-sub.ll145
1 files changed, 133 insertions, 12 deletions
diff --git a/llvm/test/Transforms/InstSimplify/saturating-add-sub.ll b/llvm/test/Transforms/InstSimplify/saturating-add-sub.ll
index d16ed4256f6..8e733d6d272 100644
--- a/llvm/test/Transforms/InstSimplify/saturating-add-sub.ll
+++ b/llvm/test/Transforms/InstSimplify/saturating-add-sub.ll
@@ -406,8 +406,30 @@ define <2 x i8> @ssub_vector_same(<2 x i8> %a) {
ret <2 x i8> %y6v
}
-define i1 @uadd_icmp_known(i8 %a) {
-; CHECK-LABEL: @uadd_icmp_known(
+define i1 @uadd_icmp_op0_known(i8 %a) {
+; CHECK-LABEL: @uadd_icmp_op0_known(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.uadd.sat.i8(i8 10, i8 [[A:%.*]])
+; CHECK-NEXT: [[C:%.*]] = icmp uge i8 [[B]], 10
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.uadd.sat.i8(i8 10, i8 %a)
+ %c = icmp uge i8 %b, 10
+ ret i1 %c
+}
+
+define i1 @uadd_icmp_op0_unknown(i8 %a) {
+; CHECK-LABEL: @uadd_icmp_op0_unknown(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.uadd.sat.i8(i8 10, i8 [[A:%.*]])
+; CHECK-NEXT: [[C:%.*]] = icmp ugt i8 [[B]], 10
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.uadd.sat.i8(i8 10, i8 %a)
+ %c = icmp ugt i8 %b, 10
+ ret i1 %c
+}
+
+define i1 @uadd_icmp_op1_known(i8 %a) {
+; CHECK-LABEL: @uadd_icmp_op1_known(
; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.uadd.sat.i8(i8 [[A:%.*]], i8 10)
; CHECK-NEXT: [[C:%.*]] = icmp uge i8 [[B]], 10
; CHECK-NEXT: ret i1 [[C]]
@@ -417,8 +439,8 @@ define i1 @uadd_icmp_known(i8 %a) {
ret i1 %c
}
-define i1 @uadd_icmp_unknown(i8 %a) {
-; CHECK-LABEL: @uadd_icmp_unknown(
+define i1 @uadd_icmp_op1_unknown(i8 %a) {
+; CHECK-LABEL: @uadd_icmp_op1_unknown(
; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.uadd.sat.i8(i8 [[A:%.*]], i8 10)
; CHECK-NEXT: [[C:%.*]] = icmp ugt i8 [[B]], 10
; CHECK-NEXT: ret i1 [[C]]
@@ -428,8 +450,52 @@ define i1 @uadd_icmp_unknown(i8 %a) {
ret i1 %c
}
-define i1 @sadd_icmp_pos_known(i8 %a) {
-; CHECK-LABEL: @sadd_icmp_pos_known(
+define i1 @sadd_icmp_op0_pos_known(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op0_pos_known(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 10, i8 [[A:%.*]])
+; CHECK-NEXT: [[C:%.*]] = icmp sge i8 [[B]], -118
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.sadd.sat.i8(i8 10, i8 %a)
+ %c = icmp sge i8 %b, -118
+ ret i1 %c
+}
+
+define i1 @sadd_icmp_op0_pos_unknown(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op0_pos_unknown(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 10, i8 [[A:%.*]])
+; CHECK-NEXT: [[C:%.*]] = icmp sgt i8 [[B]], -118
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.sadd.sat.i8(i8 10, i8 %a)
+ %c = icmp sgt i8 %b, -118
+ ret i1 %c
+}
+
+define i1 @sadd_icmp_op0_neg_known(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op0_neg_known(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 -10, i8 [[A:%.*]])
+; CHECK-NEXT: [[C:%.*]] = icmp sle i8 [[B]], 117
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.sadd.sat.i8(i8 -10, i8 %a)
+ %c = icmp sle i8 %b, 117
+ ret i1 %c
+}
+
+define i1 @sadd_icmp_op0_neg_unknown(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op0_neg_unknown(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 -10, i8 [[A:%.*]])
+; CHECK-NEXT: [[C:%.*]] = icmp slt i8 [[B]], 117
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.sadd.sat.i8(i8 -10, i8 %a)
+ %c = icmp slt i8 %b, 117
+ ret i1 %c
+}
+
+define i1 @sadd_icmp_op1_pos_known(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op1_pos_known(
; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 [[A:%.*]], i8 10)
; CHECK-NEXT: [[C:%.*]] = icmp sge i8 [[B]], -118
; CHECK-NEXT: ret i1 [[C]]
@@ -439,8 +505,8 @@ define i1 @sadd_icmp_pos_known(i8 %a) {
ret i1 %c
}
-define i1 @sadd_icmp_pos_unknown(i8 %a) {
-; CHECK-LABEL: @sadd_icmp_pos_unknown(
+define i1 @sadd_icmp_op1_pos_unknown(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op1_pos_unknown(
; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 [[A:%.*]], i8 10)
; CHECK-NEXT: [[C:%.*]] = icmp sgt i8 [[B]], -118
; CHECK-NEXT: ret i1 [[C]]
@@ -450,8 +516,8 @@ define i1 @sadd_icmp_pos_unknown(i8 %a) {
ret i1 %c
}
-define i1 @sadd_icmp_neg_known(i8 %a) {
-; CHECK-LABEL: @sadd_icmp_neg_known(
+define i1 @sadd_icmp_op1_neg_known(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op1_neg_known(
; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 [[A:%.*]], i8 -10)
; CHECK-NEXT: [[C:%.*]] = icmp sle i8 [[B]], 117
; CHECK-NEXT: ret i1 [[C]]
@@ -461,8 +527,8 @@ define i1 @sadd_icmp_neg_known(i8 %a) {
ret i1 %c
}
-define i1 @sadd_icmp_neg_unknown(i8 %a) {
-; CHECK-LABEL: @sadd_icmp_neg_unknown(
+define i1 @sadd_icmp_op1_neg_unknown(i8 %a) {
+; CHECK-LABEL: @sadd_icmp_op1_neg_unknown(
; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.sadd.sat.i8(i8 [[A:%.*]], i8 -10)
; CHECK-NEXT: [[C:%.*]] = icmp slt i8 [[B]], 117
; CHECK-NEXT: ret i1 [[C]]
@@ -571,3 +637,58 @@ define i1 @ssub_icmp_op0_zero(i8 %a) {
%c = icmp ne i8 %b, -128
ret i1 %c
}
+
+define i1 @ssub_icmp_op1_pos_known(i8 %a) {
+; CHECK-LABEL: @ssub_icmp_op1_pos_known(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.ssub.sat.i8(i8 [[A:%.*]], i8 10)
+; CHECK-NEXT: [[C:%.*]] = icmp sle i8 [[B]], 117
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.ssub.sat.i8(i8 %a, i8 10)
+ %c = icmp sle i8 %b, 117
+ ret i1 %c
+}
+
+define i1 @ssub_icmp_op1_pos_unknown(i8 %a) {
+; CHECK-LABEL: @ssub_icmp_op1_pos_unknown(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.ssub.sat.i8(i8 [[A:%.*]], i8 10)
+; CHECK-NEXT: [[C:%.*]] = icmp slt i8 [[B]], 117
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.ssub.sat.i8(i8 %a, i8 10)
+ %c = icmp slt i8 %b, 117
+ ret i1 %c
+}
+
+define i1 @ssub_icmp_op1_neg_known(i8 %a) {
+; CHECK-LABEL: @ssub_icmp_op1_neg_known(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.ssub.sat.i8(i8 [[A:%.*]], i8 -10)
+; CHECK-NEXT: [[C:%.*]] = icmp sge i8 [[B]], -118
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.ssub.sat.i8(i8 %a, i8 -10)
+ %c = icmp sge i8 %b, -118
+ ret i1 %c
+}
+
+define i1 @ssub_icmp_op1_neg_unknown(i8 %a) {
+; CHECK-LABEL: @ssub_icmp_op1_neg_unknown(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.ssub.sat.i8(i8 [[A:%.*]], i8 -10)
+; CHECK-NEXT: [[C:%.*]] = icmp sgt i8 [[B]], -118
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.ssub.sat.i8(i8 %a, i8 -10)
+ %c = icmp sgt i8 %b, -118
+ ret i1 %c
+}
+
+define i1 @ssub_icmp_op1_smin(i8 %a) {
+; CHECK-LABEL: @ssub_icmp_op1_smin(
+; CHECK-NEXT: [[B:%.*]] = call i8 @llvm.ssub.sat.i8(i8 [[A:%.*]], i8 -128)
+; CHECK-NEXT: [[C:%.*]] = icmp sge i8 [[B]], 0
+; CHECK-NEXT: ret i1 [[C]]
+;
+ %b = call i8 @llvm.ssub.sat.i8(i8 %a, i8 -128)
+ %c = icmp sge i8 %b, 0
+ ret i1 %c
+}
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