forked from OSchip/llvm-project
Clean up a test case.
The test case is added to demonstrate diff before and after patch D114832. The solution is Differential Revision: https://reviews.llvm.org/D118846
This commit is contained in:
minglotus-6
parent
78c6b90000
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d70bd7a148
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=sroa -S | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.RetValIntChar = type { i32, i8 }
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%struct.RetValTwoInts = type { i32, i32 }
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%struct.RetValOneIntTwoChar = type { i32, i8 }
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; Tests that a struct of type {i32, i8} is scalarized by SROA.
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; FIXME: SROA should skip scalarization since there is no scalar access.
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; Currently scalarization happens due to the mismatch of allocated size
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; and the actual structure size.
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define i64 @test_struct_of_int_char(i1 zeroext %test, i64 ()* %p) {
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; CHECK-LABEL: @test_struct_of_int_char(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[TEST:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br label [[RETURN:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: [[CALL:%.*]] = call i64 [[P:%.*]]()
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; CHECK-NEXT: [[RETVAL_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[CALL]] to i32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[CALL]], 32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RETVAL_SROA_3_0_EXTRACT_SHIFT]] to i8
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; CHECK-NEXT: [[RETVAL_SROA_4_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[CALL]], 40
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; CHECK-NEXT: [[RETVAL_SROA_4_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RETVAL_SROA_4_0_EXTRACT_SHIFT]] to i24
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; CHECK-NEXT: br label [[RETURN]]
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; CHECK: return:
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; CHECK-NEXT: [[RETVAL_SROA_4_SROA_0_0:%.*]] = phi i24 [ undef, [[IF_THEN]] ], [ [[RETVAL_SROA_4_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_3_0:%.*]] = phi i8 [ 0, [[IF_THEN]] ], [ [[RETVAL_SROA_3_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_0_0:%.*]] = phi i32 [ 0, [[IF_THEN]] ], [ [[RETVAL_SROA_0_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_4_0_INSERT_EXT:%.*]] = zext i24 [[RETVAL_SROA_4_SROA_0_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_4_0_INSERT_SHIFT:%.*]] = shl i64 [[RETVAL_SROA_4_0_INSERT_EXT]], 40
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; CHECK-NEXT: [[RETVAL_SROA_4_0_INSERT_MASK:%.*]] = and i64 undef, 1099511627775
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; CHECK-NEXT: [[RETVAL_SROA_4_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_4_0_INSERT_MASK]], [[RETVAL_SROA_4_0_INSERT_SHIFT]]
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_EXT:%.*]] = zext i8 [[RETVAL_SROA_3_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_SHIFT:%.*]] = shl i64 [[RETVAL_SROA_3_0_INSERT_EXT]], 32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_MASK:%.*]] = and i64 [[RETVAL_SROA_4_0_INSERT_INSERT]], -1095216660481
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_3_0_INSERT_MASK]], [[RETVAL_SROA_3_0_INSERT_SHIFT]]
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_EXT:%.*]] = zext i32 [[RETVAL_SROA_0_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_MASK:%.*]] = and i64 [[RETVAL_SROA_3_0_INSERT_INSERT]], -4294967296
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_0_0_INSERT_MASK]], [[RETVAL_SROA_0_0_INSERT_EXT]]
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; CHECK-NEXT: ret i64 [[RETVAL_SROA_0_0_INSERT_INSERT]]
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;
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entry:
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%retval = alloca %struct.RetValIntChar, align 4
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br i1 %test, label %if.then, label %if.end
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if.then: ; preds = %entry
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%x = getelementptr inbounds %struct.RetValIntChar, %struct.RetValIntChar* %retval, i32 0, i32 0
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store i32 0, i32* %x, align 4
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%y = getelementptr inbounds %struct.RetValIntChar, %struct.RetValIntChar* %retval, i32 0, i32 1
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store i8 0, i8* %y, align 4
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br label %return
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if.end: ; preds = %entry
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%call = call i64 %p()
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%0 = bitcast %struct.RetValIntChar* %retval to i64*
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store i64 %call, i64* %0, align 4
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br label %return
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return: ; preds = %if.end, %if.then
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%1 = bitcast %struct.RetValIntChar* %retval to i64*
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%2 = load i64, i64* %1, align 4
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ret i64 %2
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}
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; Test that the alloca of struct{int, int} will be scalarized by SROA.
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define i64 @test_struct_of_two_int(i1 zeroext %test, i64 ()* %p) {
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; CHECK-LABEL: @test_struct_of_two_int(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[TEST:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br label [[RETURN:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: [[CALL:%.*]] = call i64 [[P:%.*]]()
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; CHECK-NEXT: [[RETVAL_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[CALL]] to i32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[CALL]], 32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RETVAL_SROA_3_0_EXTRACT_SHIFT]] to i32
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; CHECK-NEXT: br label [[RETURN]]
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; CHECK: return:
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; CHECK-NEXT: [[RETVAL_SROA_3_0:%.*]] = phi i32 [ 0, [[IF_THEN]] ], [ [[RETVAL_SROA_3_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_0_0:%.*]] = phi i32 [ 0, [[IF_THEN]] ], [ [[RETVAL_SROA_0_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_EXT:%.*]] = zext i32 [[RETVAL_SROA_3_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_SHIFT:%.*]] = shl i64 [[RETVAL_SROA_3_0_INSERT_EXT]], 32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_MASK:%.*]] = and i64 undef, 4294967295
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_3_0_INSERT_MASK]], [[RETVAL_SROA_3_0_INSERT_SHIFT]]
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_EXT:%.*]] = zext i32 [[RETVAL_SROA_0_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_MASK:%.*]] = and i64 [[RETVAL_SROA_3_0_INSERT_INSERT]], -4294967296
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_0_0_INSERT_MASK]], [[RETVAL_SROA_0_0_INSERT_EXT]]
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; CHECK-NEXT: ret i64 [[RETVAL_SROA_0_0_INSERT_INSERT]]
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;
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entry:
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%retval = alloca %struct.RetValTwoInts, align 4
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br i1 %test, label %if.then, label %if.end
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if.then: ; preds = %entry
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%x = getelementptr inbounds %struct.RetValTwoInts, %struct.RetValTwoInts* %retval, i32 0, i32 0
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store i32 0, i32* %x, align 4
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%y = getelementptr inbounds %struct.RetValTwoInts, %struct.RetValTwoInts* %retval, i32 0, i32 1
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store i32 0, i32* %y, align 4
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br label %return
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if.end: ; preds = %entry
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%call = call i64 %p()
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%0 = bitcast %struct.RetValTwoInts* %retval to i64*
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store i64 %call, i64* %0, align 4
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br label %return
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return: ; preds = %if.end, %if.then
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%1 = bitcast %struct.RetValTwoInts* %retval to i64*
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%2 = load i64, i64* %1, align 4
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ret i64 %2
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}
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; Tests that allocated struct type is scalarized when non-constant values are
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; stored into its fields.
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define i64 @test_one_field_has_runtime_value(i1 zeroext %test, i64 ()* %p) {
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; CHECK-LABEL: @test_one_field_has_runtime_value(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = call i64 @time(i64* null)
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; CHECK-NEXT: [[CONV:%.*]] = trunc i64 [[CALL]] to i32
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; CHECK-NEXT: call void @srand(i32 [[CONV]])
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; CHECK-NEXT: br i1 [[TEST:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: [[CALL1:%.*]] = call i32 @rand()
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; CHECK-NEXT: br label [[RETURN:%.*]]
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; CHECK: if.end:
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; CHECK-NEXT: [[CALL2:%.*]] = call i64 [[P:%.*]]()
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; CHECK-NEXT: [[RETVAL_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[CALL2]] to i32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[CALL2]], 32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RETVAL_SROA_3_0_EXTRACT_SHIFT]] to i32
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; CHECK-NEXT: br label [[RETURN]]
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; CHECK: return:
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; CHECK-NEXT: [[RETVAL_SROA_3_0:%.*]] = phi i32 [ 1, [[IF_THEN]] ], [ [[RETVAL_SROA_3_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_0_0:%.*]] = phi i32 [ [[CALL1]], [[IF_THEN]] ], [ [[RETVAL_SROA_0_0_EXTRACT_TRUNC]], [[IF_END]] ]
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_EXT:%.*]] = zext i32 [[RETVAL_SROA_3_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_SHIFT:%.*]] = shl i64 [[RETVAL_SROA_3_0_INSERT_EXT]], 32
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_MASK:%.*]] = and i64 undef, 4294967295
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; CHECK-NEXT: [[RETVAL_SROA_3_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_3_0_INSERT_MASK]], [[RETVAL_SROA_3_0_INSERT_SHIFT]]
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_EXT:%.*]] = zext i32 [[RETVAL_SROA_0_0]] to i64
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_MASK:%.*]] = and i64 [[RETVAL_SROA_3_0_INSERT_INSERT]], -4294967296
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; CHECK-NEXT: [[RETVAL_SROA_0_0_INSERT_INSERT:%.*]] = or i64 [[RETVAL_SROA_0_0_INSERT_MASK]], [[RETVAL_SROA_0_0_INSERT_EXT]]
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; CHECK-NEXT: ret i64 [[RETVAL_SROA_0_0_INSERT_INSERT]]
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;
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entry:
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%retval = alloca %struct.RetValTwoInts, align 4
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%call = call i64 @time(i64* null)
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%conv = trunc i64 %call to i32
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call void @srand(i32 %conv)
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br i1 %test, label %if.then, label %if.end
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if.then: ; preds = %entry
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%x = getelementptr inbounds %struct.RetValTwoInts, %struct.RetValTwoInts* %retval, i32 0, i32 0
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%call1 = call i32 @rand()
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store i32 %call1, i32* %x, align 4
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%y = getelementptr inbounds %struct.RetValTwoInts, %struct.RetValTwoInts* %retval, i32 0, i32 1
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store i32 1, i32* %y, align 4
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br label %return
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if.end: ; preds = %entry
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%call2 = call i64 %p()
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%0 = bitcast %struct.RetValTwoInts* %retval to i64*
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store i64 %call2, i64* %0, align 4
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br label %return
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return: ; preds = %if.end, %if.then
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%1 = bitcast %struct.RetValTwoInts* %retval to i64*
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%2 = load i64, i64* %1, align 4
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ret i64 %2
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}
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; Function Attrs: nounwind
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declare void @srand(i32)
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; Function Attrs: nounwind
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declare i64 @time(i64*)
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; Function Attrs: nounwind
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declare i32 @rand()
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