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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/merge-huge-sp-updates.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

33 lines
1.1 KiB
LLVM

; RUN: llc < %s -mtriple=x86_64-linux-unknown -verify-machineinstrs -o %t.s
; RUN: FileCheck --input-file=%t.s %s
; Double-check that we are able to assemble the generated '.s'. A symptom of the
; problem that led to this test is an assembler failure when using
; '-save-temps'. For example:
;
; > ...s:683:7: error: invalid operand for instruction
; > addq $2147483679, %rsp # imm = 0x8000001F
;
; RUN: llvm-mc -triple x86_64-unknown-unknown %t.s
; Check that the stack update after calling bar gets merged into the second add
; and not the first which is already at the chunk size limit (0x7FFFFFFF).
define void @foo(ptr %rhs) {
; CHECK-LABEL: foo
entry:
%lhs = alloca [5 x [5 x [3 x [162 x [161 x [161 x double]]]]]], align 16
store ptr %lhs, ptr %rhs, align 8
%0 = call i32 @baz()
call void @bar(i64 0, i64 0, i64 0, i64 0, i64 0, ptr null, ptr %rhs, ptr null, ptr %rhs)
; CHECK: call{{.*}}bar
; CHECK: addq{{.*}}$2147483647, %rsp
; CHECK: addq{{.*}}$372037601, %rsp
; CHECK: .cfi_adjust_cfa_offset -2519521248
ret void
}
declare void @bar(i64, i64, i64, i64, i64, ptr, ptr, ptr, ptr)
declare i32 @baz()