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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=dse -S | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
define void @second_store_smaller_1(ptr noalias %P, i1 %c) {
; CHECK-LABEL: @second_store_smaller_1(
; CHECK-NEXT: store i32 0, ptr [[P:%.*]], align 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: ret void
;
store i32 1, ptr %P
br i1 %c, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
br label %bb3
bb3:
store i16 0, ptr %P
ret void
}
define void @second_store_smaller_2(ptr noalias %P, i1 %c) {
; CHECK-LABEL: @second_store_smaller_2(
; CHECK-NEXT: store i32 12345, ptr [[P:%.*]], align 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: ret void
;
store i32 1, ptr %P
br i1 %c, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
br label %bb3
bb3:
store i16 12345, ptr %P
ret void
}
declare void @use(i16) readnone
declare void @use.i8(i8) readnone
define void @second_store_smaller_3(ptr noalias %P, i1 %c) {
; CHECK-LABEL: @second_store_smaller_3(
; CHECK-NEXT: store i32 1, ptr [[P:%.*]], align 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[L1:%.*]] = load i16, ptr [[P]], align 2
; CHECK-NEXT: call void @use(i16 [[L1]])
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i16 -31073, ptr [[P]], align 2
; CHECK-NEXT: ret void
;
store i32 1, ptr %P
br i1 %c, label %bb1, label %bb2
bb1:
%l1 = load i16, ptr %P
call void @use(i16 %l1)
br label %bb3
bb2:
br label %bb3
bb3:
store i16 -31073, ptr %P
ret void
}
define void @second_store_smaller_4(ptr noalias %P, i1 %c) {
; CHECK-LABEL: @second_store_smaller_4(
; CHECK-NEXT: store i32 1, ptr [[P:%.*]], align 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[L1:%.*]] = load i8, ptr [[P]], align 1
; CHECK-NEXT: call void @use.i8(i8 [[L1]])
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i16 -31073, ptr [[P]], align 2
; CHECK-NEXT: ret void
;
store i32 1, ptr %P
br i1 %c, label %bb1, label %bb2
bb1:
%l1 = load i8, ptr %P
call void @use.i8(i8 %l1)
br label %bb3
bb2:
br label %bb3
bb3:
store i16 -31073, ptr %P
ret void
}
define void @second_store_smaller_5(ptr noalias %P, i16 %x, i1 %c) {
; CHECK-LABEL: @second_store_smaller_5(
; CHECK-NEXT: store i32 1, ptr [[P:%.*]], align 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i16 [[X:%.*]], ptr [[P]], align 2
; CHECK-NEXT: ret void
;
store i32 1, ptr %P
br i1 %c, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
br label %bb3
bb3:
store i16 %x, ptr %P
ret void
}
define void @second_store_bigger(ptr noalias %P, i1 %c) {
; CHECK-LABEL: @second_store_bigger(
; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i64 0, ptr [[P:%.*]], align 8
; CHECK-NEXT: ret void
;
store i32 1, ptr %P
br i1 %c, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
br label %bb3
bb3:
store i64 0, ptr %P
ret void
}
|
