139 lines
4.2 KiB
LLVM
139 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32I %s
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; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV64I %s
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; When passing a function argument with a size that isn't a multiple of XLEN,
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; and the argument is split and passed indirectly, we must ensure that the stack
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; slot size appropriately reflects the total size of the parts the argument is
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; split into. Otherwise, stack writes can clobber neighboring values.
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declare void @callee129(i129)
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declare void @callee160(i160)
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declare void @callee161(i161)
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define i32 @caller129() nounwind {
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; RV32I-LABEL: caller129:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -32
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; RV32I-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
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; RV32I-NEXT: li a0, 42
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; RV32I-NEXT: sw a0, 24(sp)
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; RV32I-NEXT: sw zero, 16(sp)
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; RV32I-NEXT: sw zero, 12(sp)
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; RV32I-NEXT: sw zero, 8(sp)
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; RV32I-NEXT: sw zero, 4(sp)
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; RV32I-NEXT: mv a0, sp
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; RV32I-NEXT: sw zero, 0(sp)
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; RV32I-NEXT: call callee129@plt
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; RV32I-NEXT: lw a0, 24(sp)
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; RV32I-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 32
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: caller129:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -48
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; RV64I-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
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; RV64I-NEXT: li a0, 42
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; RV64I-NEXT: sw a0, 36(sp)
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; RV64I-NEXT: sd zero, 16(sp)
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; RV64I-NEXT: sd zero, 8(sp)
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; RV64I-NEXT: mv a0, sp
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; RV64I-NEXT: sd zero, 0(sp)
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; RV64I-NEXT: call callee129@plt
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; RV64I-NEXT: lw a0, 36(sp)
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; RV64I-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 48
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; RV64I-NEXT: ret
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%1 = alloca i32
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store i32 42, i32* %1
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call void @callee129(i129 0)
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%2 = load i32, i32* %1
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ret i32 %2
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}
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define i32 @caller160() nounwind {
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; RV32I-LABEL: caller160:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -32
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; RV32I-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
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; RV32I-NEXT: li a0, 42
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; RV32I-NEXT: sw a0, 24(sp)
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; RV32I-NEXT: sw zero, 16(sp)
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; RV32I-NEXT: sw zero, 12(sp)
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; RV32I-NEXT: sw zero, 8(sp)
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; RV32I-NEXT: sw zero, 4(sp)
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; RV32I-NEXT: mv a0, sp
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; RV32I-NEXT: sw zero, 0(sp)
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; RV32I-NEXT: call callee160@plt
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; RV32I-NEXT: lw a0, 24(sp)
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; RV32I-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 32
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: caller160:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -48
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; RV64I-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
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; RV64I-NEXT: li a0, 42
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; RV64I-NEXT: sw a0, 36(sp)
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; RV64I-NEXT: sd zero, 16(sp)
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; RV64I-NEXT: sd zero, 8(sp)
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; RV64I-NEXT: mv a0, sp
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; RV64I-NEXT: sd zero, 0(sp)
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; RV64I-NEXT: call callee160@plt
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; RV64I-NEXT: lw a0, 36(sp)
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; RV64I-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 48
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; RV64I-NEXT: ret
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%1 = alloca i32
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store i32 42, i32* %1
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call void @callee160(i160 0)
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%2 = load i32, i32* %1
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ret i32 %2
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}
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define i32 @caller161() nounwind {
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; RV32I-LABEL: caller161:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -32
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; RV32I-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
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; RV32I-NEXT: li a0, 42
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; RV32I-NEXT: sw a0, 24(sp)
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; RV32I-NEXT: sw zero, 20(sp)
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; RV32I-NEXT: sw zero, 16(sp)
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; RV32I-NEXT: sw zero, 12(sp)
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; RV32I-NEXT: sw zero, 8(sp)
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; RV32I-NEXT: sw zero, 4(sp)
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; RV32I-NEXT: mv a0, sp
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; RV32I-NEXT: sw zero, 0(sp)
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; RV32I-NEXT: call callee161@plt
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; RV32I-NEXT: lw a0, 24(sp)
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; RV32I-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 32
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: caller161:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -48
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; RV64I-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
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; RV64I-NEXT: li a0, 42
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; RV64I-NEXT: sw a0, 36(sp)
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; RV64I-NEXT: sd zero, 16(sp)
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; RV64I-NEXT: sd zero, 8(sp)
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; RV64I-NEXT: mv a0, sp
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; RV64I-NEXT: sd zero, 0(sp)
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; RV64I-NEXT: call callee161@plt
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; RV64I-NEXT: lw a0, 36(sp)
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; RV64I-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 48
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; RV64I-NEXT: ret
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%1 = alloca i32
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store i32 42, i32* %1
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call void @callee161(i161 0)
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%2 = load i32, i32* %1
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ret i32 %2
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}
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