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-rw-r--r--llvm/test/MC/X86/displacement-overflow.s36
1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/test/MC/X86/displacement-overflow.s b/llvm/test/MC/X86/displacement-overflow.s
new file mode 100644
index 0000000..626003a
--- /dev/null
+++ b/llvm/test/MC/X86/displacement-overflow.s
@@ -0,0 +1,36 @@
+# RUN: not llvm-mc -triple=x86_64 %s 2>&1 | FileCheck %s --check-prefixes=CHECK,64 --implicit-check-not=error: --implicit-check-not=warning:
+# RUN: llvm-mc -triple=i686 --defsym A16=1 %s 2>&1 | FileCheck %s --check-prefixes=CHECK,32 --implicit-check-not=error: --implicit-check-not=warning:
+
+.ifndef A16
+movq 0x80000000-1(%rip), %rax
+leaq -0x80000000(%rip), %rax
+
+# 64: [[#@LINE+1]]:17: error: displacement 2147483648 is not within [-2147483648, 2147483647]
+movq 0x80000000(%rip), %rax
+
+# 64: [[#@LINE+1]]:18: error: displacement -2147483649 is not within [-2147483648, 2147483647]
+leaq -0x80000001(%rip), %rax
+.endif
+
+movl 0xffffffff(%eax), %eax
+leal -0xffffffff(%eax), %eax
+
+# CHECK: [[#@LINE+1]]:19: warning: displacement 4294967296 shortened to signed 32-bit
+movl 0xffffffff+1(%eax), %eax
+
+# CHECK: [[#@LINE+1]]:20: warning: displacement -4294967296 shortened to signed 32-bit
+leal -0xffffffff-1(%eax), %eax
+
+{disp8} leal 0x100(%ebx), %eax
+{disp8} leal -0x100(%ebx), %eax
+
+.ifdef A16
+.code16
+movw $0, 0xffff(%bp)
+movw $0, -0xffff(%si)
+
+# 32: [[#@LINE+1]]:19: warning: displacement 65536 shortened to signed 16-bit
+movw $0, 0xffff+1(%bp)
+# 32: [[#@LINE+1]]:20: warning: displacement -65536 shortened to signed 16-bit
+movw $0, -0xffff-1(%si)
+.endif