From 32083bd072709f5a7676a39779d86145ac0a8f5f Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Sun, 16 Dec 2018 17:45:25 +0000 Subject: [PATCH] [InstCombine] Add additional saturating add/sub + icmp tests; NFC These test comparisons with saturating add/sub in non-canonical form. llvm-svn: 349309 --- .../Transforms/InstSimplify/saturating-add-sub.ll | 145 +++++++++++++++++++-- 1 file 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 d16ed4256..8e733d6 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 +} -- 2.7.4