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llvm-project/llvm/test/CodeGen/X86/getelementptr.ll

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X86: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309774
2017-08-02 08:28:10 +08:00
; RUN: llc < %s -O0 -mtriple=i686--
; RUN: llc < %s -O0 -mtriple=x86_64--
; RUN: llc < %s -O2 -mtriple=i686--
; RUN: llc < %s -O2 -mtriple=x86_64--
Handle big index in getelementptr instruction CodeGen incorrectly ignores (assert from APInt) constant index bigger than 2^64 in getelementptr instruction. This is a test and fix for that. Patch by Paweł Bylica! Reviewed By: rnk Subscribers: majnemer, rnk, mcrosier, resistor, llvm-commits Differential Revision: http://reviews.llvm.org/D8219 llvm-svn: 231984
2015-03-12 07:36:10 +08:00
; Test big index trunc to pointer size:
define i8* @test_trunc65(i8* %ptr) nounwind {
; CHECK-LABEL: test_trunc65
; CHECK: 3
%d = getelementptr i8, i8* %ptr, i65 18446744073709551619 ; 2^64 + 3
ret i8* %d
}
define i8* @test_trunc128(i8* %ptr) nounwind {
; CHECK-LABEL: test_trunc128
; CHECK: 5
%d = getelementptr i8, i8* %ptr, i128 18446744073709551621 ; 2^64 + 5
ret i8* %d
}
define i8* @test_trunc160(i8* %ptr) nounwind {
; CHECK-LABEL: test_trunc160
; CHECK: 8
%d = getelementptr i8, i8* %ptr, i160 18446744073709551624 ; 2^64 + 8
ret i8* %d
}
define i8* @test_trunc256(i8* %ptr) nounwind {
; CHECK-LABEL: test_trunc256
; CHECK: 13
%d = getelementptr i8, i8* %ptr, i256 18446744073709551629 ; 2^64 + 13
ret i8* %d
}
define i8* @test_trunc2048(i8* %ptr) nounwind {
; CHECK-LABEL: test_trunc2048
; CHECK: 21
%d = getelementptr i8, i8* %ptr, i2048 18446744073709551637 ; 2^64 + 21
ret i8* %d
}
; Test small index sext to pointer size
define i8* @test_sext3(i8* %ptr) nounwind {
; CHECK-LABEL: test_sext3
; CHECK: -3
%d = getelementptr i8, i8* %ptr, i3 -3
ret i8* %d
}
define i8* @test_sext5(i8* %ptr) nounwind {
; CHECK-LABEL: test_sext5
; CHECK: -5
%d = getelementptr i8, i8* %ptr, i5 -5
ret i8* %d
}
define i8* @test_sext8(i8* %ptr) nounwind {
; CHECK-LABEL: test_sext8
; CHECK: -8
%d = getelementptr i8, i8* %ptr, i8 -8
ret i8* %d
}
define i8* @test_sext13(i8* %ptr) nounwind {
; CHECK-LABEL: test_sext13
; CHECK: -13
%d = getelementptr i8, i8* %ptr, i8 -13
ret i8* %d
}
define i8* @test_sext16(i8* %ptr) nounwind {
; CHECK-LABEL: test_sext16
; CHECK: -21
%d = getelementptr i8, i8* %ptr, i8 -21
ret i8* %d
}