tint: Add tests showing tint:1332 is fixed

The abstract-numeric work has fixed this, by removing the error for
small floating point numbers.

Fixed: tint:1332
Change-Id: Ibf7382795210220d343d62fe22d201cf67db1ccc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92244
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>

test/tint/bug/tint/1332.wgsl

@@ -0,0 +1,5 @@
+@stage(compute) @workgroup_size(1)
+fn compute_main() {
+	let a = 1.23;
+	var b = max(a, 1.17549435e-38);
+}

test/tint/bug/tint/1332.wgsl.expected.glsl

@@ -0,0 +1,11 @@
+#version 310 es
+
+void compute_main() {
+  float b = max(1.230000019f, 1.17549435e-38f);
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void main() {
+  compute_main();
+  return;
+}

test/tint/bug/tint/1332.wgsl.expected.hlsl

@@ -0,0 +1,5 @@
+[numthreads(1, 1, 1)]
+void compute_main() {
+  float b = max(1.230000019f, 1.17549435e-38f);
+  return;
+}

test/tint/bug/tint/1332.wgsl.expected.msl

@@ -0,0 +1,9 @@
+#include <metal_stdlib>
+
+using namespace metal;
+kernel void compute_main() {
+  float const a = 1.230000019f;
+  float b = fmax(1.230000019f, 1.17549435e-38f);
+  return;
+}
+

test/tint/bug/tint/1332.wgsl.expected.spvasm

@@ -0,0 +1,26 @@
+; SPIR-V
+; Version: 1.3
+; Generator: Google Tint Compiler; 0
+; Bound: 13
+; Schema: 0
+               OpCapability Shader
+          %8 = OpExtInstImport "GLSL.std.450"
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint GLCompute %compute_main "compute_main"
+               OpExecutionMode %compute_main LocalSize 1 1 1
+               OpName %compute_main "compute_main"
+               OpName %b "b"
+       %void = OpTypeVoid
+          %1 = OpTypeFunction %void
+      %float = OpTypeFloat 32
+%float_1_23000002 = OpConstant %float 1.23000002
+%float_1_17549435en38 = OpConstant %float 1.17549435e-38
+%_ptr_Function_float = OpTypePointer Function %float
+         %12 = OpConstantNull %float
+%compute_main = OpFunction %void None %1
+          %4 = OpLabel
+          %b = OpVariable %_ptr_Function_float Function %12
+          %7 = OpExtInst %float %8 NMax %float_1_23000002 %float_1_17549435en38
+               OpStore %b %7
+               OpReturn
+               OpFunctionEnd

test/tint/bug/tint/1332.wgsl.expected.wgsl

@@ -0,0 +1,5 @@
+@stage(compute) @workgroup_size(1)
+fn compute_main() {
+  let a = 1.230000019;
+  var b = max(a, 1.17549435e-38);
+}