| // Copyright 2025 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
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| // |
| // 3. Neither the name of the copyright holder nor the names of its |
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| // this software without specific prior written permission. |
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| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| |
| #include "src/tint/lang/spirv/reader/parser/helper_test.h" |
| |
| namespace tint::spirv::reader { |
| namespace { |
| |
| TEST_F(SpirvParserTest, Branch_Forward) { |
| EXPECT_IR(R"( |
| OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %main "main" |
| OpExecutionMode %main LocalSize 1 1 1 |
| %void = OpTypeVoid |
| %i32 = OpTypeInt 32 1 |
| %one = OpConstant %i32 1 |
| %two = OpConstant %i32 2 |
| %three = OpConstant %i32 3 |
| %ep_type = OpTypeFunction %void |
| %main = OpFunction %void None %ep_type |
| %main_start = OpLabel |
| %1 = OpCopyObject %i32 %one |
| OpBranch %bb_2 |
| %bb_2 = OpLabel |
| %2 = OpCopyObject %i32 %two |
| OpBranch %bb_3 |
| %bb_3 = OpLabel |
| %3 = OpCopyObject %i32 %three |
| OpReturn |
| OpFunctionEnd |
| )", |
| R"( |
| %main = @compute @workgroup_size(1u, 1u, 1u) func():void { |
| $B1: { |
| %2:i32 = let 1i |
| %3:i32 = let 2i |
| %4:i32 = let 3i |
| ret |
| } |
| } |
| )"); |
| } |
| |
| TEST_F(SpirvParserTest, BranchConditional) { |
| EXPECT_IR(R"( |
| OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %main "main" |
| OpExecutionMode %main LocalSize 1 1 1 |
| %void = OpTypeVoid |
| %i32 = OpTypeInt 32 1 |
| %bool = OpTypeBool |
| %one = OpConstant %i32 1 |
| %two = OpConstant %i32 2 |
| %three = OpConstant %i32 3 |
| %true = OpConstantTrue %bool |
| %ep_type = OpTypeFunction %void |
| %main = OpFunction %void None %ep_type |
| %main_start = OpLabel |
| %1 = OpCopyObject %i32 %one |
| OpSelectionMerge %bb_merge None |
| OpBranchConditional %true %bb_true %bb_false |
| %bb_true = OpLabel |
| %2 = OpCopyObject %i32 %two |
| OpReturn |
| %bb_false = OpLabel |
| %3 = OpCopyObject %i32 %three |
| OpBranch %bb_merge |
| %bb_merge = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )", |
| R"( |
| %main = @compute @workgroup_size(1u, 1u, 1u) func():void { |
| $B1: { |
| %2:i32 = let 1i |
| if true [t: $B2, f: $B3] { # if_1 |
| $B2: { # true |
| %3:i32 = let 2i |
| ret |
| } |
| $B3: { # false |
| %4:i32 = let 3i |
| exit_if # if_1 |
| } |
| } |
| ret |
| } |
| } |
| )"); |
| } |
| |
| TEST_F(SpirvParserTest, BranchConditional_TrueToMerge) { |
| EXPECT_IR(R"( |
| OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %main "main" |
| OpExecutionMode %main LocalSize 1 1 1 |
| %void = OpTypeVoid |
| %i32 = OpTypeInt 32 1 |
| %bool = OpTypeBool |
| %one = OpConstant %i32 1 |
| %two = OpConstant %i32 2 |
| %three = OpConstant %i32 3 |
| %true = OpConstantTrue %bool |
| %ep_type = OpTypeFunction %void |
| %main = OpFunction %void None %ep_type |
| %main_start = OpLabel |
| %1 = OpCopyObject %i32 %one |
| OpSelectionMerge %bb_merge None |
| OpBranchConditional %true %bb_merge %bb_false |
| %bb_false = OpLabel |
| %3 = OpCopyObject %i32 %three |
| OpBranch %bb_merge |
| %bb_merge = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )", |
| R"( |
| %main = @compute @workgroup_size(1u, 1u, 1u) func():void { |
| $B1: { |
| %2:i32 = let 1i |
| if true [t: $B2, f: $B3] { # if_1 |
| $B2: { # true |
| exit_if # if_1 |
| } |
| $B3: { # false |
| %3:i32 = let 3i |
| exit_if # if_1 |
| } |
| } |
| ret |
| } |
| } |
| )"); |
| } |
| |
| TEST_F(SpirvParserTest, BranchConditional_FalseToMerge) { |
| EXPECT_IR(R"( |
| OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %main "main" |
| OpExecutionMode %main LocalSize 1 1 1 |
| %void = OpTypeVoid |
| %i32 = OpTypeInt 32 1 |
| %bool = OpTypeBool |
| %one = OpConstant %i32 1 |
| %two = OpConstant %i32 2 |
| %three = OpConstant %i32 3 |
| %true = OpConstantTrue %bool |
| %ep_type = OpTypeFunction %void |
| %main = OpFunction %void None %ep_type |
| %main_start = OpLabel |
| %1 = OpCopyObject %i32 %one |
| OpSelectionMerge %bb_merge None |
| OpBranchConditional %true %bb_true %bb_merge |
| %bb_true = OpLabel |
| %2 = OpCopyObject %i32 %two |
| OpReturn |
| %bb_merge = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )", |
| R"( |
| %main = @compute @workgroup_size(1u, 1u, 1u) func():void { |
| $B1: { |
| %2:i32 = let 1i |
| if true [t: $B2, f: $B3] { # if_1 |
| $B2: { # true |
| %3:i32 = let 2i |
| ret |
| } |
| $B3: { # false |
| exit_if # if_1 |
| } |
| } |
| ret |
| } |
| } |
| )"); |
| } |
| |
| TEST_F(SpirvParserTest, BranchConditional_TrueMatchesFalse) { |
| EXPECT_IR(R"( |
| OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %main "main" |
| OpExecutionMode %main LocalSize 1 1 1 |
| %void = OpTypeVoid |
| %i32 = OpTypeInt 32 1 |
| %bool = OpTypeBool |
| %one = OpConstant %i32 1 |
| %two = OpConstant %i32 2 |
| %three = OpConstant %i32 3 |
| %true = OpConstantTrue %bool |
| %ep_type = OpTypeFunction %void |
| %main = OpFunction %void None %ep_type |
| %main_start = OpLabel |
| %1 = OpCopyObject %i32 %one |
| OpBranchConditional %true %bb_true %bb_true |
| %bb_true = OpLabel |
| %2 = OpCopyObject %i32 %two |
| OpReturn |
| OpFunctionEnd |
| )", |
| R"( |
| %main = @compute @workgroup_size(1u, 1u, 1u) func():void { |
| $B1: { |
| %2:i32 = let 1i |
| if true [t: $B2, f: $B3] { # if_1 |
| $B2: { # true |
| %3:i32 = let 2i |
| ret |
| } |
| $B3: { # false |
| %4:i32 = let 2i |
| ret |
| } |
| } |
| unreachable |
| } |
| } |
| )"); |
| } |
| |
| TEST_F(SpirvParserTest, BranchConditional_Nested) { |
| EXPECT_IR(R"( |
| OpCapability Shader |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint GLCompute %main "main" |
| OpExecutionMode %main LocalSize 1 1 1 |
| %void = OpTypeVoid |
| %i32 = OpTypeInt 32 1 |
| %bool = OpTypeBool |
| %one = OpConstant %i32 1 |
| %two = OpConstant %i32 2 |
| %three = OpConstant %i32 3 |
| %true = OpConstantTrue %bool |
| %ep_type = OpTypeFunction %void |
| %main = OpFunction %void None %ep_type |
| %main_start = OpLabel |
| %1 = OpCopyObject %i32 %one |
| OpSelectionMerge %bb_merge None |
| OpBranchConditional %true %bb_true %bb_merge |
| %bb_true = OpLabel |
| OpBranchConditional %true %99 %bb_merge |
| %99 = OpLabel |
| %2 = OpCopyObject %i32 %two |
| OpBranch %bb_merge |
| %bb_merge = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )", |
| R"( |
| %main = @compute @workgroup_size(1u, 1u, 1u) func():void { |
| $B1: { |
| %2:i32 = let 1i |
| if true [t: $B2, f: $B3] { # if_1 |
| $B2: { # true |
| if true [t: $B4, f: $B5] { # if_2 |
| $B4: { # true |
| %3:i32 = let 2i |
| exit_if # if_2 |
| } |
| $B5: { # false |
| exit_if # if_2 |
| } |
| } |
| exit_if # if_1 |
| } |
| $B3: { # false |
| exit_if # if_1 |
| } |
| } |
| ret |
| } |
| } |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::spirv::reader |
