Regres: use Subzero backend by default

Use the Subzero backend instead of LLVM when running Regres per CL. Turnaround times should be faster, and since Chromium now uses SwiftShaderVK/Subzero, we'll know which CL breaks it, if any. Change-Id: If164d87c4946a1f7899c3407cc31fa2f1eba4931 Bug: b/152216043 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/44628Reviewed-by: Nicolas Capens <nicolascapens@google.com> Tested-by: Antonio Maiorano <amaiorano@google.com> Kokoro-Result: kokoro <noreply+kokoro@google.com>

Regres: use Subzero backend by default
c2fe258a · Antonio Maiorano · b3854cec · c2fe258a
Commit c2fe258a authored May 01, 2020 by Antonio Maiorano
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main.go tests/regres/cmd/regres/main.go +1 -1

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--- a/tests/regres/cmd/regres/main.go
+++ b/tests/regres/cmd/regres/main.go
@@ -1015,7 +1015,7 @@ func (r *regres) newTest(commit git.Hash) *test {
 		checkoutDir:    checkoutDir,
 		resDir:         resDir,
 		buildDir:       filepath.Join(checkoutDir, "build"),
-		reactorBackend: backendLLVM,
+		reactorBackend: backendSubzero,
 	}
 }