cmd/internal/obj/x86: TestVexEvexPCrelative failures

[gopherbot]

#!watchflakes
default <- pkg == "cmd/internal/obj/x86" && test == "TestVexEvexPCrelative"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestVexEvexPCrelative
    pcrelative_test.go:68: error exit status 1 output # runtime
        runtime: s.allocCount= 167 s.nelems= 168
        fatal error: s.allocCount != s.nelems && freeIndex == s.nelems
        
        goroutine 2033 gp=0xc006678000 m=3 mp=0xc000080008 [running]:
        runtime.throw({0x3fcd7f7?, 0x50?})
        	runtime/panic.go:1099 +0x48 fp=0xc0086e36f0 sp=0xc0086e36c0 pc=0x3676188
        runtime.(*mcache).nextFree(0x4a80a78, 0xa)
        	runtime/malloc.go:962 +0x4ca fp=0xc0086e3748 sp=0xc0086e36f0 pc=0x360c14a
...
        	runtime/chan.go:283
        runtime.chansend1(0xc003f13ab0, 0xc002b34a10)
        	runtime/chan.go:161 +0x35a fp=0xc0081f5fb0 sp=0xc0081f5f40 pc=0x360361a
        cmd/compile/internal/gc.compileFunctions.func3.1()
        	cmd/compile/internal/gc/compile.go:172 +0x3f fp=0xc0081f5fe0 sp=0xc0081f5fb0 pc=0x3f53b3f
        runtime.goexit({})
        	runtime/asm_amd64.s:1700 +0x1 fp=0xc0081f5fe8 sp=0xc0081f5fe0 pc=0x367d7c1
        created by cmd/compile/internal/gc.compileFunctions.func3 in goroutine 202
        	cmd/compile/internal/gc/compile.go:170 +0x247
--- FAIL: TestVexEvexPCrelative (4.29s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "cmd/internal/obj/x86" && test == "TestVexEvexPCrelative"

2025-01-16 19:01 gotip-darwin-amd64-race go@6a4effa0 cmd/internal/obj/x86.TestVexEvexPCrelative (log)

=== RUN   TestVexEvexPCrelative
    pcrelative_test.go:68: error exit status 1 output # runtime
        runtime: s.allocCount= 167 s.nelems= 168
        fatal error: s.allocCount != s.nelems && freeIndex == s.nelems
        
        goroutine 2033 gp=0xc006678000 m=3 mp=0xc000080008 [running]:
        runtime.throw({0x3fcd7f7?, 0x50?})
        	runtime/panic.go:1099 +0x48 fp=0xc0086e36f0 sp=0xc0086e36c0 pc=0x3676188
        runtime.(*mcache).nextFree(0x4a80a78, 0xa)
        	runtime/malloc.go:962 +0x4ca fp=0xc0086e3748 sp=0xc0086e36f0 pc=0x360c14a
...
        	runtime/chan.go:283
        runtime.chansend1(0xc003f13ab0, 0xc002b34a10)
        	runtime/chan.go:161 +0x35a fp=0xc0081f5fb0 sp=0xc0081f5f40 pc=0x360361a
        cmd/compile/internal/gc.compileFunctions.func3.1()
        	cmd/compile/internal/gc/compile.go:172 +0x3f fp=0xc0081f5fe0 sp=0xc0081f5fb0 pc=0x3f53b3f
        runtime.goexit({})
        	runtime/asm_amd64.s:1700 +0x1 fp=0xc0081f5fe8 sp=0xc0081f5fe0 pc=0x367d7c1
        created by cmd/compile/internal/gc.compileFunctions.func3 in goroutine 202
        	cmd/compile/internal/gc/compile.go:170 +0x247
--- FAIL: TestVexEvexPCrelative (4.29s)

— watchflakes