forked from OSchip/llvm-project
254 lines
13 KiB
C++
254 lines
13 KiB
C++
// Check code generation
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// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -emit-llvm %s -o - | FileCheck %s --check-prefix=IR
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// Check same results after serialization round-trip
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// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -emit-pch -o %t %s
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// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp -fopenmp-version=51 -include-pch %t -emit-llvm %s -o - | FileCheck %s --check-prefix=IR
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// expected-no-diagnostics
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// Account for multiple transformations of a loop before consumed by
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// #pragma omp for.
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#ifndef HEADER
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#define HEADER
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// placeholder for loop body code.
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extern "C" void body(...) {}
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// IR-LABEL: @func(
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// IR-NEXT: [[ENTRY:.*]]:
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// IR-NEXT: %[[START_ADDR:.+]] = alloca i32, align 4
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// IR-NEXT: %[[END_ADDR:.+]] = alloca i32, align 4
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// IR-NEXT: %[[STEP_ADDR:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTOMP_IV:.+]] = alloca i32, align 4
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// IR-NEXT: %[[TMP:.+]] = alloca i32, align 4
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// IR-NEXT: %[[I:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_1:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_2:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_3:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTFLOOR_0_IV_I:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_6:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_8:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_12:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTCAPTURE_EXPR_14:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTFLOOR_0_IV__FLOOR_0_IV_I:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTOMP_LB:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTOMP_UB:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTOMP_STRIDE:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTOMP_IS_LAST:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTFLOOR_0_IV__FLOOR_0_IV_I18:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTTILE_0_IV__FLOOR_0_IV_I:.+]] = alloca i32, align 4
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// IR-NEXT: %[[DOTTILE_0_IV_I:.+]] = alloca i32, align 4
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// IR-NEXT: %[[TMP0:.+]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* @2)
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// IR-NEXT: store i32 %[[START:.+]], i32* %[[START_ADDR]], align 4
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// IR-NEXT: store i32 %[[END:.+]], i32* %[[END_ADDR]], align 4
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// IR-NEXT: store i32 %[[STEP:.+]], i32* %[[STEP_ADDR]], align 4
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// IR-NEXT: %[[TMP1:.+]] = load i32, i32* %[[START_ADDR]], align 4
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// IR-NEXT: store i32 %[[TMP1]], i32* %[[I]], align 4
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// IR-NEXT: %[[TMP2:.+]] = load i32, i32* %[[START_ADDR]], align 4
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// IR-NEXT: store i32 %[[TMP2]], i32* %[[DOTCAPTURE_EXPR_]], align 4
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// IR-NEXT: %[[TMP3:.+]] = load i32, i32* %[[END_ADDR]], align 4
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// IR-NEXT: store i32 %[[TMP3]], i32* %[[DOTCAPTURE_EXPR_1]], align 4
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// IR-NEXT: %[[TMP4:.+]] = load i32, i32* %[[STEP_ADDR]], align 4
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// IR-NEXT: store i32 %[[TMP4]], i32* %[[DOTCAPTURE_EXPR_2]], align 4
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// IR-NEXT: %[[TMP5:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_1]], align 4
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// IR-NEXT: %[[TMP6:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_]], align 4
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// IR-NEXT: %[[SUB:.+]] = sub i32 %[[TMP5]], %[[TMP6]]
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// IR-NEXT: %[[SUB4:.+]] = sub i32 %[[SUB]], 1
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// IR-NEXT: %[[TMP7:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_2]], align 4
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// IR-NEXT: %[[ADD:.+]] = add i32 %[[SUB4]], %[[TMP7]]
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// IR-NEXT: %[[TMP8:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_2]], align 4
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// IR-NEXT: %[[DIV:.+]] = udiv i32 %[[ADD]], %[[TMP8]]
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// IR-NEXT: %[[SUB5:.+]] = sub i32 %[[DIV]], 1
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// IR-NEXT: store i32 %[[SUB5]], i32* %[[DOTCAPTURE_EXPR_3]], align 4
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// IR-NEXT: store i32 0, i32* %[[DOTFLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[TMP9:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_3]], align 4
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// IR-NEXT: %[[ADD7:.+]] = add i32 %[[TMP9]], 1
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// IR-NEXT: store i32 %[[ADD7]], i32* %[[DOTCAPTURE_EXPR_6]], align 4
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// IR-NEXT: %[[TMP10:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_6]], align 4
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// IR-NEXT: %[[SUB9:.+]] = sub i32 %[[TMP10]], -3
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// IR-NEXT: %[[DIV10:.+]] = udiv i32 %[[SUB9]], 4
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// IR-NEXT: %[[SUB11:.+]] = sub i32 %[[DIV10]], 1
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// IR-NEXT: store i32 %[[SUB11]], i32* %[[DOTCAPTURE_EXPR_8]], align 4
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// IR-NEXT: %[[TMP11:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_8]], align 4
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// IR-NEXT: %[[ADD13:.+]] = add i32 %[[TMP11]], 1
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// IR-NEXT: store i32 %[[ADD13]], i32* %[[DOTCAPTURE_EXPR_12]], align 4
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// IR-NEXT: %[[TMP12:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_12]], align 4
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// IR-NEXT: %[[SUB15:.+]] = sub i32 %[[TMP12]], -2
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// IR-NEXT: %[[DIV16:.+]] = udiv i32 %[[SUB15]], 3
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// IR-NEXT: %[[SUB17:.+]] = sub i32 %[[DIV16]], 1
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// IR-NEXT: store i32 %[[SUB17]], i32* %[[DOTCAPTURE_EXPR_14]], align 4
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// IR-NEXT: store i32 0, i32* %[[DOTFLOOR_0_IV__FLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[TMP13:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_12]], align 4
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// IR-NEXT: %[[CMP:.+]] = icmp ult i32 0, %[[TMP13]]
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// IR-NEXT: br i1 %[[CMP]], label %[[OMP_PRECOND_THEN:.+]], label %[[OMP_PRECOND_END:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_PRECOND_THEN]]:
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// IR-NEXT: store i32 0, i32* %[[DOTOMP_LB]], align 4
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// IR-NEXT: %[[TMP14:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_14]], align 4
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// IR-NEXT: store i32 %[[TMP14]], i32* %[[DOTOMP_UB]], align 4
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// IR-NEXT: store i32 1, i32* %[[DOTOMP_STRIDE]], align 4
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// IR-NEXT: store i32 0, i32* %[[DOTOMP_IS_LAST]], align 4
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// IR-NEXT: call void @__kmpc_for_static_init_4u(%struct.ident_t* @1, i32 %[[TMP0]], i32 34, i32* %[[DOTOMP_IS_LAST]], i32* %[[DOTOMP_LB]], i32* %[[DOTOMP_UB]], i32* %[[DOTOMP_STRIDE]], i32 1, i32 1)
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// IR-NEXT: %[[TMP15:.+]] = load i32, i32* %[[DOTOMP_UB]], align 4
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// IR-NEXT: %[[TMP16:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_14]], align 4
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// IR-NEXT: %[[CMP19:.+]] = icmp ugt i32 %[[TMP15]], %[[TMP16]]
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// IR-NEXT: br i1 %[[CMP19]], label %[[COND_TRUE:.+]], label %[[COND_FALSE:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_TRUE]]:
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// IR-NEXT: %[[TMP17:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_14]], align 4
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// IR-NEXT: br label %[[COND_END:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_FALSE]]:
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// IR-NEXT: %[[TMP18:.+]] = load i32, i32* %[[DOTOMP_UB]], align 4
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// IR-NEXT: br label %[[COND_END]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_END]]:
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// IR-NEXT: %[[COND:.+]] = phi i32 [ %[[TMP17]], %[[COND_TRUE]] ], [ %[[TMP18]], %[[COND_FALSE]] ]
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// IR-NEXT: store i32 %[[COND]], i32* %[[DOTOMP_UB]], align 4
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// IR-NEXT: %[[TMP19:.+]] = load i32, i32* %[[DOTOMP_LB]], align 4
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// IR-NEXT: store i32 %[[TMP19]], i32* %[[DOTOMP_IV]], align 4
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// IR-NEXT: br label %[[OMP_INNER_FOR_COND:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_INNER_FOR_COND]]:
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// IR-NEXT: %[[TMP20:.+]] = load i32, i32* %[[DOTOMP_IV]], align 4
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// IR-NEXT: %[[TMP21:.+]] = load i32, i32* %[[DOTOMP_UB]], align 4
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// IR-NEXT: %[[ADD20:.+]] = add i32 %[[TMP21]], 1
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// IR-NEXT: %[[CMP21:.+]] = icmp ult i32 %[[TMP20]], %[[ADD20]]
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// IR-NEXT: br i1 %[[CMP21]], label %[[OMP_INNER_FOR_BODY:.+]], label %[[OMP_INNER_FOR_END:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_INNER_FOR_BODY]]:
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// IR-NEXT: %[[TMP22:.+]] = load i32, i32* %[[DOTOMP_IV]], align 4
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// IR-NEXT: %[[MUL:.+]] = mul i32 %[[TMP22]], 3
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// IR-NEXT: %[[ADD22:.+]] = add i32 0, %[[MUL]]
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// IR-NEXT: store i32 %[[ADD22]], i32* %[[DOTFLOOR_0_IV__FLOOR_0_IV_I18]], align 4
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// IR-NEXT: %[[TMP23:.+]] = load i32, i32* %[[DOTFLOOR_0_IV__FLOOR_0_IV_I18]], align 4
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// IR-NEXT: store i32 %[[TMP23]], i32* %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4
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// IR-NEXT: br label %[[FOR_COND:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_COND]]:
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// IR-NEXT: %[[TMP24:.+]] = load i32, i32* %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[TMP25:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_8]], align 4
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// IR-NEXT: %[[ADD23:.+]] = add i32 %[[TMP25]], 1
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// IR-NEXT: %[[TMP26:.+]] = load i32, i32* %[[DOTFLOOR_0_IV__FLOOR_0_IV_I18]], align 4
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// IR-NEXT: %[[ADD24:.+]] = add i32 %[[TMP26]], 3
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// IR-NEXT: %[[CMP25:.+]] = icmp ult i32 %[[ADD23]], %[[ADD24]]
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// IR-NEXT: br i1 %[[CMP25]], label %[[COND_TRUE26:.+]], label %[[COND_FALSE28:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_TRUE26]]:
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// IR-NEXT: %[[TMP27:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_8]], align 4
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// IR-NEXT: %[[ADD27:.+]] = add i32 %[[TMP27]], 1
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// IR-NEXT: br label %[[COND_END30:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_FALSE28]]:
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// IR-NEXT: %[[TMP28:.+]] = load i32, i32* %[[DOTFLOOR_0_IV__FLOOR_0_IV_I18]], align 4
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// IR-NEXT: %[[ADD29:.+]] = add i32 %[[TMP28]], 3
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// IR-NEXT: br label %[[COND_END30]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_END30]]:
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// IR-NEXT: %[[COND31:.+]] = phi i32 [ %[[ADD27]], %[[COND_TRUE26]] ], [ %[[ADD29]], %[[COND_FALSE28]] ]
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// IR-NEXT: %[[CMP32:.+]] = icmp ult i32 %[[TMP24]], %[[COND31]]
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// IR-NEXT: br i1 %[[CMP32]], label %[[FOR_BODY:.+]], label %[[FOR_END51:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_BODY]]:
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// IR-NEXT: %[[TMP29:.+]] = load i32, i32* %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[MUL33:.+]] = mul i32 %[[TMP29]], 4
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// IR-NEXT: %[[ADD34:.+]] = add i32 0, %[[MUL33]]
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// IR-NEXT: store i32 %[[ADD34]], i32* %[[DOTFLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[TMP30:.+]] = load i32, i32* %[[DOTFLOOR_0_IV_I]], align 4
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// IR-NEXT: store i32 %[[TMP30]], i32* %[[DOTTILE_0_IV_I]], align 4
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// IR-NEXT: br label %[[FOR_COND35:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_COND35]]:
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// IR-NEXT: %[[TMP31:.+]] = load i32, i32* %[[DOTTILE_0_IV_I]], align 4
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// IR-NEXT: %[[TMP32:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_3]], align 4
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// IR-NEXT: %[[ADD36:.+]] = add i32 %[[TMP32]], 1
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// IR-NEXT: %[[TMP33:.+]] = load i32, i32* %[[DOTFLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[ADD37:.+]] = add nsw i32 %[[TMP33]], 4
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// IR-NEXT: %[[CMP38:.+]] = icmp ult i32 %[[ADD36]], %[[ADD37]]
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// IR-NEXT: br i1 %[[CMP38]], label %[[COND_TRUE39:.+]], label %[[COND_FALSE41:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_TRUE39]]:
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// IR-NEXT: %[[TMP34:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_3]], align 4
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// IR-NEXT: %[[ADD40:.+]] = add i32 %[[TMP34]], 1
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// IR-NEXT: br label %[[COND_END43:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_FALSE41]]:
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// IR-NEXT: %[[TMP35:.+]] = load i32, i32* %[[DOTFLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[ADD42:.+]] = add nsw i32 %[[TMP35]], 4
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// IR-NEXT: br label %[[COND_END43]]
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// IR-EMPTY:
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// IR-NEXT: [[COND_END43]]:
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// IR-NEXT: %[[COND44:.+]] = phi i32 [ %[[ADD40]], %[[COND_TRUE39]] ], [ %[[ADD42]], %[[COND_FALSE41]] ]
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// IR-NEXT: %[[CMP45:.+]] = icmp ult i32 %[[TMP31]], %[[COND44]]
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// IR-NEXT: br i1 %[[CMP45]], label %[[FOR_BODY46:.+]], label %[[FOR_END:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_BODY46]]:
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// IR-NEXT: %[[TMP36:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_]], align 4
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// IR-NEXT: %[[TMP37:.+]] = load i32, i32* %[[DOTTILE_0_IV_I]], align 4
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// IR-NEXT: %[[TMP38:.+]] = load i32, i32* %[[DOTCAPTURE_EXPR_2]], align 4
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// IR-NEXT: %[[MUL47:.+]] = mul i32 %[[TMP37]], %[[TMP38]]
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// IR-NEXT: %[[ADD48:.+]] = add i32 %[[TMP36]], %[[MUL47]]
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// IR-NEXT: store i32 %[[ADD48]], i32* %[[I]], align 4
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// IR-NEXT: %[[TMP39:.+]] = load i32, i32* %[[START_ADDR]], align 4
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// IR-NEXT: %[[TMP40:.+]] = load i32, i32* %[[END_ADDR]], align 4
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// IR-NEXT: %[[TMP41:.+]] = load i32, i32* %[[STEP_ADDR]], align 4
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// IR-NEXT: %[[TMP42:.+]] = load i32, i32* %[[I]], align 4
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// IR-NEXT: call void (...) @body(i32 %[[TMP39]], i32 %[[TMP40]], i32 %[[TMP41]], i32 %[[TMP42]])
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// IR-NEXT: br label %[[FOR_INC:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_INC]]:
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// IR-NEXT: %[[TMP43:.+]] = load i32, i32* %[[DOTTILE_0_IV_I]], align 4
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// IR-NEXT: %[[INC:.+]] = add nsw i32 %[[TMP43]], 1
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// IR-NEXT: store i32 %[[INC]], i32* %[[DOTTILE_0_IV_I]], align 4
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// IR-NEXT: br label %[[FOR_COND35]], !llvm.loop ![[LOOP2:[0-9]+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_END]]:
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// IR-NEXT: br label %[[FOR_INC49:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_INC49]]:
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// IR-NEXT: %[[TMP44:.+]] = load i32, i32* %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4
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// IR-NEXT: %[[INC50:.+]] = add i32 %[[TMP44]], 1
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// IR-NEXT: store i32 %[[INC50]], i32* %[[DOTTILE_0_IV__FLOOR_0_IV_I]], align 4
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// IR-NEXT: br label %[[FOR_COND]], !llvm.loop ![[LOOP4:[0-9]+]]
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// IR-EMPTY:
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// IR-NEXT: [[FOR_END51]]:
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// IR-NEXT: br label %[[OMP_BODY_CONTINUE:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_BODY_CONTINUE]]:
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// IR-NEXT: br label %[[OMP_INNER_FOR_INC:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_INNER_FOR_INC]]:
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// IR-NEXT: %[[TMP45:.+]] = load i32, i32* %[[DOTOMP_IV]], align 4
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// IR-NEXT: %[[ADD52:.+]] = add i32 %[[TMP45]], 1
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// IR-NEXT: store i32 %[[ADD52]], i32* %[[DOTOMP_IV]], align 4
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// IR-NEXT: br label %[[OMP_INNER_FOR_COND]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_INNER_FOR_END]]:
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// IR-NEXT: br label %[[OMP_LOOP_EXIT:.+]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_LOOP_EXIT]]:
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// IR-NEXT: call void @__kmpc_for_static_fini(%struct.ident_t* @1, i32 %[[TMP0]])
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// IR-NEXT: br label %[[OMP_PRECOND_END]]
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// IR-EMPTY:
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// IR-NEXT: [[OMP_PRECOND_END]]:
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// IR-NEXT: call void @__kmpc_barrier(%struct.ident_t* @3, i32 %[[TMP0]])
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// IR-NEXT: ret void
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// IR-NEXT: }
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extern "C" void func(int start, int end, int step) {
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#pragma omp for
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#pragma omp tile sizes(3)
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#pragma omp tile sizes(4)
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for (int i = start; i < end; i += step)
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body(start, end, step, i);
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}
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#endif /* HEADER */
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// IR: ![[META0:[0-9]+]] = !{i32 1, !"wchar_size", i32 4}
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// IR: ![[META1:[0-9]+]] = !{!"{{[^"]*}}"}
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// IR: ![[LOOP2]] = distinct !{![[LOOP2]], ![[LOOPPROP3:[0-9]+]]}
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// IR: ![[LOOPPROP3]] = !{!"llvm.loop.mustprogress"}
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// IR: ![[LOOP4]] = distinct !{![[LOOP4]], ![[LOOPPROP3]]}
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