From 109be507377fe7f6e8819ac94041d3fdcdf6fd2f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:18:25 +0200 Subject: Adding upstream version 1.19.8. Signed-off-by: Daniel Baumann --- test/fixedbugs/bug440_32.go | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 test/fixedbugs/bug440_32.go (limited to 'test/fixedbugs/bug440_32.go') diff --git a/test/fixedbugs/bug440_32.go b/test/fixedbugs/bug440_32.go new file mode 100644 index 0000000..2d26fbb --- /dev/null +++ b/test/fixedbugs/bug440_32.go @@ -0,0 +1,21 @@ +// run + +// Test for 8g register move bug. The optimizer gets confused +// about 16- vs 32-bit moves during splitContractIndex. + +// Issue 3910. + +package main + +func main() { + const c = 0x12345678 + index, n, offset := splitContractIndex(c) + if index != int((c&0xffff)>>5) || n != int(c&(1<<5-1)) || offset != (c>>16)&(1<<14-1) { + println("BUG", index, n, offset) + } +} + +func splitContractIndex(ce uint32) (index, n, offset int) { + h := uint16(ce) + return int(h >> 5), int(h & (1<<5 - 1)), int(ce>>16) & (1<<14 - 1) +} -- cgit v1.2.3