; CHECK-LABEL: @smax_vec(
; CHECK-NEXT: ret <5 x i8> <i8 undef, i8 127, i8 127, i8 42, i8 127>
;
- %r = call <5 x i8> @llvm.smax.v5i8(<5 x i8> <i8 undef, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 undef, i8 42, i8 127>)
+ %r = call <5 x i8> @llvm.smax.v5i8(<5 x i8> <i8 poison, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 poison, i8 42, i8 127>)
ret <5 x i8> %r
}
; CHECK-LABEL: @smin_vec(
; CHECK-NEXT: ret <5 x i8> <i8 undef, i8 -128, i8 -128, i8 42, i8 -127>
;
- %r = call <5 x i8> @llvm.smin.v5i8(<5 x i8> <i8 undef, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 undef, i8 42, i8 129>)
+ %r = call <5 x i8> @llvm.smin.v5i8(<5 x i8> <i8 poison, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 poison, i8 42, i8 129>)
ret <5 x i8> %r
}
; CHECK-LABEL: @umax_vec(
; CHECK-NEXT: ret <5 x i8> <i8 undef, i8 -1, i8 -1, i8 42, i8 -128>
;
- %r = call <5 x i8> @llvm.umax.v5i8(<5 x i8> <i8 undef, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 undef, i8 42, i8 128>)
+ %r = call <5 x i8> @llvm.umax.v5i8(<5 x i8> <i8 poison, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 poison, i8 42, i8 128>)
ret <5 x i8> %r
}
; CHECK-LABEL: @umin_vec(
; CHECK-NEXT: ret <5 x i8> <i8 undef, i8 0, i8 0, i8 42, i8 42>
;
- %r = call <5 x i8> @llvm.umin.v5i8(<5 x i8> <i8 undef, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 undef, i8 42, i8 128>)
+ %r = call <5 x i8> @llvm.umin.v5i8(<5 x i8> <i8 poison, i8 undef, i8 1, i8 42, i8 42>, <5 x i8> <i8 undef, i8 1, i8 poison, i8 42, i8 128>)
ret <5 x i8> %r
}
%x = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> <i8 undef, i8 10>, <2 x i8> <i8 20, i8 undef>)
ret <2 x i8> %x
}
+
+; Tests for poison handling
+
+define i8 @test_uadd_scalar_both_poison() {
+; CHECK-LABEL: @test_uadd_scalar_both_poison(
+; CHECK-NEXT: ret i8 undef
+;
+ %x = call i8 @llvm.uadd.sat.i8(i8 poison, i8 poison)
+ ret i8 %x
+}
+
+define i8 @test_sadd_scalar_both_poison() {
+; CHECK-LABEL: @test_sadd_scalar_both_poison(
+; CHECK-NEXT: ret i8 undef
+;
+ %x = call i8 @llvm.sadd.sat.i8(i8 poison, i8 poison)
+ ret i8 %x
+}
+
+define i8 @test_usub_scalar_both_poison() {
+; CHECK-LABEL: @test_usub_scalar_both_poison(
+; CHECK-NEXT: ret i8 undef
+;
+ %x = call i8 @llvm.usub.sat.i8(i8 poison, i8 poison)
+ ret i8 %x
+}
+
+define i8 @test_ssub_scalar_both_poison() {
+; CHECK-LABEL: @test_ssub_scalar_both_poison(
+; CHECK-NEXT: ret i8 undef
+;
+ %x = call i8 @llvm.ssub.sat.i8(i8 poison, i8 poison)
+ ret i8 %x
+}
+
+define i8 @test_uadd_scalar_op2_poison() {
+; CHECK-LABEL: @test_uadd_scalar_op2_poison(
+; CHECK-NEXT: ret i8 -1
+;
+ %x = call i8 @llvm.uadd.sat.i8(i8 10, i8 poison)
+ ret i8 %x
+}
+
+define i8 @test_sadd_scalar_op1_poison() {
+; CHECK-LABEL: @test_sadd_scalar_op1_poison(
+; CHECK-NEXT: ret i8 -1
+;
+ %x = call i8 @llvm.sadd.sat.i8(i8 poison, i8 10)
+ ret i8 %x
+}
+
+define i8 @test_usub_scalar_op2_poison() {
+; CHECK-LABEL: @test_usub_scalar_op2_poison(
+; CHECK-NEXT: ret i8 0
+;
+ %x = call i8 @llvm.usub.sat.i8(i8 10, i8 poison)
+ ret i8 %x
+}
+
+define i8 @test_usub_scalar_op1_poison() {
+; CHECK-LABEL: @test_usub_scalar_op1_poison(
+; CHECK-NEXT: ret i8 0
+;
+ %x = call i8 @llvm.usub.sat.i8(i8 poison, i8 10)
+ ret i8 %x
+}
+
+define <2 x i8> @test_uadd_vector_both_poison_splat() {
+; CHECK-LABEL: @test_uadd_vector_both_poison_splat(
+; CHECK-NEXT: ret <2 x i8> undef
+;
+ %x = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> poison, <2 x i8> poison)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_sadd_vector_both_poison_splat() {
+; CHECK-LABEL: @test_sadd_vector_both_poison_splat(
+; CHECK-NEXT: ret <2 x i8> undef
+;
+ %x = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> poison, <2 x i8> poison)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_usub_vector_both_poison_splat() {
+; CHECK-LABEL: @test_usub_vector_both_poison_splat(
+; CHECK-NEXT: ret <2 x i8> undef
+;
+ %x = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> poison, <2 x i8> poison)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_ssub_vector_both_poison_splat() {
+; CHECK-LABEL: @test_ssub_vector_both_poison_splat(
+; CHECK-NEXT: ret <2 x i8> undef
+;
+ %x = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> poison, <2 x i8> poison)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_uadd_vector_op2_poison_splat() {
+; CHECK-LABEL: @test_uadd_vector_op2_poison_splat(
+; CHECK-NEXT: ret <2 x i8> <i8 -1, i8 -1>
+;
+ %x = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> <i8 10, i8 20>, <2 x i8> poison)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_sadd_vector_op1_poison_splat() {
+; CHECK-LABEL: @test_sadd_vector_op1_poison_splat(
+; CHECK-NEXT: ret <2 x i8> <i8 -1, i8 -1>
+;
+ %x = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> poison, <2 x i8> <i8 10, i8 20>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_usub_vector_op2_poison_splat() {
+; CHECK-LABEL: @test_usub_vector_op2_poison_splat(
+; CHECK-NEXT: ret <2 x i8> zeroinitializer
+;
+ %x = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> <i8 10, i8 20>, <2 x i8> poison)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_ssub_vector_op1_poison_splat() {
+; CHECK-LABEL: @test_ssub_vector_op1_poison_splat(
+; CHECK-NEXT: ret <2 x i8> zeroinitializer
+;
+ %x = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> poison, <2 x i8> <i8 10, i8 20>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_uadd_vector_op2_poison_mix1() {
+; CHECK-LABEL: @test_uadd_vector_op2_poison_mix1(
+; CHECK-NEXT: ret <2 x i8> <i8 30, i8 undef>
+;
+ %x = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> <i8 10, i8 poison>, <2 x i8> <i8 20, i8 poison>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_uadd_vector_op2_poison_mix2() {
+; CHECK-LABEL: @test_uadd_vector_op2_poison_mix2(
+; CHECK-NEXT: ret <2 x i8> <i8 -1, i8 -1>
+;
+ %x = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> <i8 10, i8 poison>, <2 x i8> <i8 poison, i8 20>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_sadd_vector_op1_poison_mix1() {
+; CHECK-LABEL: @test_sadd_vector_op1_poison_mix1(
+; CHECK-NEXT: ret <2 x i8> <i8 undef, i8 30>
+;
+ %x = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> <i8 poison, i8 10>, <2 x i8> <i8 poison, i8 20>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_sadd_vector_op1_poison_mix2() {
+; CHECK-LABEL: @test_sadd_vector_op1_poison_mix2(
+; CHECK-NEXT: ret <2 x i8> <i8 -1, i8 -1>
+;
+ %x = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> <i8 poison, i8 10>, <2 x i8> <i8 20, i8 poison>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_usub_vector_op2_poison_mix1() {
+; CHECK-LABEL: @test_usub_vector_op2_poison_mix1(
+; CHECK-NEXT: ret <2 x i8> <i8 0, i8 undef>
+;
+ %x = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> <i8 10, i8 poison>, <2 x i8> <i8 20, i8 poison>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_usub_vector_op2_poison_mix2() {
+; CHECK-LABEL: @test_usub_vector_op2_poison_mix2(
+; CHECK-NEXT: ret <2 x i8> zeroinitializer
+;
+ %x = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> <i8 10, i8 poison>, <2 x i8> <i8 poison, i8 20>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_ssub_vector_op1_poison_mix1() {
+; CHECK-LABEL: @test_ssub_vector_op1_poison_mix1(
+; CHECK-NEXT: ret <2 x i8> <i8 undef, i8 -10>
+;
+ %x = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> <i8 poison, i8 10>, <2 x i8> <i8 poison, i8 20>)
+ ret <2 x i8> %x
+}
+
+define <2 x i8> @test_ssub_vector_op1_poison_mix2() {
+; CHECK-LABEL: @test_ssub_vector_op1_poison_mix2(
+; CHECK-NEXT: ret <2 x i8> zeroinitializer
+;
+ %x = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> <i8 poison, i8 10>, <2 x i8> <i8 20, i8 poison>)
+ ret <2 x i8> %x
+}