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[FuncSpec] Add force flag to test case to trigger the transform. NFC.

This commit is contained in:
Sjoerd Meijer 2021-09-16 17:34:47 +01:00
parent ee2e414dde
commit 2a1ac2e318
1 changed files with 48 additions and 10 deletions
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48
llvm/test/Transforms/FunctionSpecialization/function-specialization-constant-expression.ll
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@ -1,16 +1,28 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; Test function specialization wouldn't crash due to constant expression.
; Note that this test case shows that function specialization pass would
; transform the function even if no specialization happened.
; RUN: opt -function-specialization -S < %s | FileCheck %s
; CHECK: plus:
; CHECK-NEXT: %{{.*}} = call i64 @func2(i64* getelementptr inbounds (%struct, %struct* @Global, i32 0, i32 3))
; CHECK: minus:
; CHECK-NEXT: %{{.*}} = call i64 @func2(i64* getelementptr inbounds (%struct, %struct* @Global, i32 0, i32 4))
; RUN: opt -function-specialization -force-function-specialization -S < %s | FileCheck %s
%struct = type { i8, i16, i32, i64, i64}
@Global = internal constant %struct {i8 0, i16 1, i32 2, i64 3, i64 4}
define internal i64 @zoo(i1 %flag) {
; CHECK-LABEL: @zoo(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[FLAG:%.*]], label [[PLUS:%.*]], label [[MINUS:%.*]]
; CHECK: plus:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @func2.1(i64* getelementptr inbounds ([[STRUCT:%.*]], %struct* @Global, i32 0, i32 3))
; CHECK-NEXT: br label [[MERGE:%.*]]
; CHECK: minus:
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @func2.2(i64* getelementptr inbounds ([[STRUCT]], %struct* @Global, i32 0, i32 4))
; CHECK-NEXT: br label [[MERGE]]
; CHECK: merge:
; CHECK-NEXT: [[TMP2:%.*]] = phi i64 [ [[TMP0]], [[PLUS]] ], [ [[TMP1]], [[MINUS]] ]
; CHECK-NEXT: ret i64 [[TMP2]]
;
entry:
br i1 %flag, label %plus, label %minus
@ -30,20 +42,46 @@ merge:
}
define internal i64 @func2(i64 *%x) {
; CHECK-LABEL: @func2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[VAL:%.*]] = ptrtoint i64* [[X:%.*]] to i64
; CHECK-NEXT: ret i64 [[VAL]]
;
entry:
%val = ptrtoint i64* %x to i64
ret i64 %val
}
define internal i64 @func(i64 *%x, i64 (i64*)* %binop) {
; CHECK-LABEL: @func(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 [[BINOP:%.*]](i64* [[X:%.*]])
; CHECK-NEXT: ret i64 [[TMP0]]
;
entry:
%tmp0 = call i64 %binop(i64* %x)
ret i64 %tmp0
}
define i64 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: [[TMP1:%.*]] = call i64 @zoo(i1 false)
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @zoo(i1 true)
; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[TMP1]], [[TMP2]]
; CHECK-NEXT: ret i64 [[TMP3]]
;
%1 = call i64 @zoo(i1 0)
%2 = call i64 @zoo(i1 1)
%3 = add i64 %1, %2
ret i64 %3
}
; CHECK-LABEL: define internal i64 @func2.1(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i64 ptrtoint (i64* getelementptr inbounds (%struct, %struct* @Global, i32 0, i32 3) to i64)
; CHECK-NEXT: }
; CHECK-LABEL: define internal i64 @func2.2(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i64 ptrtoint (i64* getelementptr inbounds (%struct, %struct* @Global, i32 0, i32 4) to i64)
; CHECK-NEXT: }