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TheRock/compiler/amd-llvm/llvm/test/CodeGen/RISCV/trunc-nsw-nuw.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

79 lines
2.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=riscv64 -mattr=+m | FileCheck %s
define signext i8 @trunc_nsw_add(i32 signext %x) nounwind {
; CHECK-LABEL: trunc_nsw_add:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: addiw a0, a0, 1
; CHECK-NEXT: ret
entry:
%add = add nsw i32 %x, 1
%trunc = trunc nsw i32 %add to i8
ret i8 %trunc
}
define signext i32 @trunc_nuw_nsw_urem(i64 %x) nounwind {
; CHECK-LABEL: trunc_nuw_nsw_urem:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: lui a1, 210
; CHECK-NEXT: lui a2, 2
; CHECK-NEXT: addi a1, a1, -1167
; CHECK-NEXT: slli a1, a1, 12
; CHECK-NEXT: addi a1, a1, 1881
; CHECK-NEXT: mul a1, a0, a1
; CHECK-NEXT: srli a1, a1, 45
; CHECK-NEXT: addi a2, a2, 1808
; CHECK-NEXT: mul a1, a1, a2
; CHECK-NEXT: subw a0, a0, a1
; CHECK-NEXT: ret
entry:
%trunc = trunc nuw nsw i64 %x to i32
%rem = urem i32 %trunc, 10000
ret i32 %rem
}
define i64 @zext_nneg_udiv_trunc_nuw(i64 %x) nounwind {
; CHECK-LABEL: zext_nneg_udiv_trunc_nuw:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: lui a1, 13
; CHECK-NEXT: addi a1, a1, -819
; CHECK-NEXT: mul a0, a0, a1
; CHECK-NEXT: srliw a0, a0, 23
; CHECK-NEXT: ret
entry:
%trunc = trunc nuw i64 %x to i16
%div = udiv i16 %trunc, 160
%ext = zext nneg i16 %div to i64
ret i64 %ext
}
define i64 @sext_udiv_trunc_nuw(i64 %x) nounwind {
; CHECK-LABEL: sext_udiv_trunc_nuw:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: lui a1, 13
; CHECK-NEXT: addi a1, a1, -819
; CHECK-NEXT: mul a0, a0, a1
; CHECK-NEXT: srliw a0, a0, 23
; CHECK-NEXT: ret
entry:
%trunc = trunc nuw i64 %x to i16
%div = udiv i16 %trunc, 160
%ext = sext i16 %div to i64
ret i64 %ext
}
define ptr @gep_nusw_zext_nneg_add_trunc_nuw_nsw(ptr %p, i64 %x) nounwind {
; CHECK-LABEL: gep_nusw_zext_nneg_add_trunc_nuw_nsw:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: slli a1, a1, 2
; CHECK-NEXT: add a0, a1, a0
; CHECK-NEXT: addi a0, a0, 20
; CHECK-NEXT: ret
entry:
%trunc = trunc nuw nsw i64 %x to i32
%add = add nuw nsw i32 %trunc, 5
%offset = zext nneg i32 %add to i64
%gep = getelementptr nusw float, ptr %p, i64 %offset
ret ptr %gep
}