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Autogen a test for ease of update

This commit is contained in:
Philip Reames 2022-01-18 11:46:43 -08:00
parent 5a6c622afd
commit bf366bd9df
1 changed files with 36 additions and 27 deletions
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51
llvm/test/Feature/OperandBundles/early-cse.ll
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@ -1,3 +1,4 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=early-cse -earlycse-debug-hash < %s | FileCheck %s
; While it is normally okay to do memory optimizations over calls to
@ -10,63 +11,71 @@ declare void @readnone_function() readnone nounwind willreturn
define i32 @test0(i32* %x) {
; CHECK-LABEL: @test0(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 100, i32* [[X:%.*]], align 4
; CHECK-NEXT: call void @readonly_function() [ "tag"() ]
; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[X]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
store i32 100, i32* %x
; CHECK: store i32 100, i32* %x
call void @readonly_function() [ "tag"() ]
; CHECK: call void @readonly_function()
%v = load i32, i32* %x
; CHECK: %v = load i32, i32* %x
; CHECK: ret i32 %v
ret i32 %v
}
define i32 @test1(i32* %x) {
; CHECK: @test1(
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 100, i32* [[X:%.*]], align 4
; CHECK-NEXT: ret i32 100
;
entry:
store i32 100, i32* %x
; CHECK: store i32 100, i32* %x
call void @readonly_function() readonly [ "tag"() ]
; CHECK-NOT: call void @readonly_function
%v = load i32, i32* %x
ret i32 %v
; CHECK: ret i32 100
}
define i32 @test3(i32* %x) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 100, i32* [[X:%.*]], align 4
; CHECK-NEXT: ret i32 100
;
entry:
store i32 100, i32* %x
; CHECK: store i32 100, i32* %x
call void @readonly_function()
; CHECK-NOT: call void @readonly_function
%v = load i32, i32* %x
ret i32 %v
; CHECK: ret i32 100
}
define void @test4(i32* %x) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 100, i32* [[X:%.*]], align 4
; CHECK-NEXT: call void @readnone_function() [ "tag"() ]
; CHECK-NEXT: store i32 200, i32* [[X]], align 4
; CHECK-NEXT: ret void
;
entry:
store i32 100, i32* %x
; CHECK: store i32 100, i32* %x
call void @readnone_function() [ "tag"() ]
; CHECK: call void @readnone_function
store i32 200, i32* %x
; CHECK: store i32 200, i32* %x
ret void
}
define void @test5(i32* %x) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 200, i32* [[X:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
store i32 100, i32* %x
; CHECK-NOT: store i32 100, i32* %x
; CHECK-NOT: call void @readnone_function
call void @readnone_function() readnone [ "tag"() ]
store i32 200, i32* %x
; CHECK: store i32 200, i32* %x
ret void
}
@ -74,13 +83,13 @@ define void @test6(i32* %x) {
; The "deopt" operand bundle does not make the call to
; @readonly_function read-write; and so the nounwind readonly call can
; be deleted.
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 200, i32* [[X:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
; CHECK-NEXT: entry:
; CHECK-NEXT: store i32 200, i32* %x
; CHECK-NEXT: ret void
store i32 100, i32* %x
call void @readonly_function() [ "deopt"() ]