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[InstCombine][NFC] Added tests for mul with zext/sext operands 

Baseline tests for D104193
This commit is contained in:
Daniil Seredkin 2021-06-18 11:03:36 +07:00
parent 85ec210751
commit aea67232b1
1 changed files with 71 additions and 0 deletions
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71
llvm/test/Transforms/InstCombine/mul.ll
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@ -247,6 +247,77 @@ define i32 @mul_bools_sext_use3(i1 %x, i1 %y) {
ret i32 %r
}
define i32 @mul_bools_sext_one_use_per_op(i1 %x, i1 %y) {
; CHECK-LABEL: @mul_bools_sext_one_use_per_op(
; CHECK-NEXT: [[MULBOOL:%.*]] = and i1 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[R:%.*]] = zext i1 [[MULBOOL]] to i32
; CHECK-NEXT: ret i32 [[R]]
;
%sx = sext i1 %x to i32
%sy = sext i1 %y to i32
%r = mul i32 %sx, %sy
ret i32 %r
}
define i32 @mul_bool_sext_one_user(i1 %x) {
; CHECK-LABEL: @mul_bool_sext_one_user(
; CHECK-NEXT: [[SX:%.*]] = sext i1 [[X:%.*]] to i32
; CHECK-NEXT: [[R:%.*]] = mul nsw i32 [[SX]], [[SX]]
; CHECK-NEXT: ret i32 [[R]]
;
%sx = sext i1 %x to i32
%r = mul i32 %sx, %sx
ret i32 %r
}
define i32 @mul_bools_zext_one_use_per_op(i1 %x, i1 %y) {
; CHECK-LABEL: @mul_bools_zext_one_use_per_op(
; CHECK-NEXT: [[MULBOOL:%.*]] = and i1 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[R:%.*]] = zext i1 [[MULBOOL]] to i32
; CHECK-NEXT: ret i32 [[R]]
;
%zx = zext i1 %x to i32
%zy = zext i1 %y to i32
%r = mul i32 %zx, %zy
ret i32 %r
}
define i32 @mul_bool_zext_one_user(i1 %x) {
; CHECK-LABEL: @mul_bool_zext_one_user(
; CHECK-NEXT: [[R:%.*]] = zext i1 [[X:%.*]] to i32
; CHECK-NEXT: ret i32 [[R]]
;
%sx = zext i1 %x to i32
%r = mul i32 %sx, %sx
ret i32 %r
}
define i32 @mul_bool_sext_one_extra_user(i1 %x) {
; CHECK-LABEL: @mul_bool_sext_one_extra_user(
; CHECK-NEXT: [[SX:%.*]] = sext i1 [[X:%.*]] to i32
; CHECK-NEXT: call void @use32(i32 [[SX]])
; CHECK-NEXT: [[R:%.*]] = mul nsw i32 [[SX]], [[SX]]
; CHECK-NEXT: ret i32 [[R]]
;
%sx = sext i1 %x to i32
call void @use32(i32 %sx)
%r = mul i32 %sx, %sx
ret i32 %r
}
define i32 @mul_bool_zext_one_extra_user(i1 %x) {
; CHECK-LABEL: @mul_bool_zext_one_extra_user(
; CHECK-NEXT: [[SX:%.*]] = zext i1 [[X:%.*]] to i32
; CHECK-NEXT: call void @use32(i32 [[SX]])
; CHECK-NEXT: [[R:%.*]] = zext i1 [[X]] to i32
; CHECK-NEXT: ret i32 [[R]]
;
%sx = zext i1 %x to i32
call void @use32(i32 %sx)
%r = mul i32 %sx, %sx
ret i32 %r
}
define <3 x i32> @mul_bools_mixed_ext(<3 x i1> %x, <3 x i1> %y) {
; CHECK-LABEL: @mul_bools_mixed_ext(
; CHECK-NEXT: [[MULBOOL:%.*]] = and <3 x i1> [[X:%.*]], [[Y:%.*]]