1 ; RUN: llc -mcpu=pwr7 -O0 -code-model=medium <%s | FileCheck %s
3 ; Test correct code generation for medium code model (32-bit TOC offsets)
4 ; for loading the address of a jump table from the TOC.
6 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
7 target triple = "powerpc64-unknown-linux-gnu"
9 define signext i32 @test_jump_table(i32 signext %i) nounwind {
11 %i.addr = alloca i32, align 4
12 store i32 %i, i32* %i.addr, align 4
13 %0 = load i32* %i.addr, align 4
14 switch i32 %0, label %sw.default [
21 sw.default: ; preds = %entry
24 sw.bb: ; preds = %entry
25 %1 = load i32* %i.addr, align 4
26 %mul = mul nsw i32 %1, 7
27 store i32 %mul, i32* %i.addr, align 4
30 sw.bb1: ; preds = %entry, %sw.bb
31 %2 = load i32* %i.addr, align 4
32 %dec = add nsw i32 %2, -1
33 store i32 %dec, i32* %i.addr, align 4
36 sw.bb2: ; preds = %entry, %sw.bb1
37 %3 = load i32* %i.addr, align 4
38 %add = add nsw i32 %3, 3
39 store i32 %add, i32* %i.addr, align 4
42 sw.bb3: ; preds = %entry, %sw.bb2
43 %4 = load i32* %i.addr, align 4
45 store i32 %shl, i32* %i.addr, align 4
48 sw.epilog: ; preds = %sw.bb3, %sw.default
49 %5 = load i32* %i.addr, align 4
53 ; CHECK: test_jump_table:
54 ; CHECK: addis [[REG1:[0-9]+]], 2, .LC[[TOCNUM:[0-9]+]]@toc@ha
55 ; CHECK: ld [[REG2:[0-9]+]], .LC[[TOCNUM]]@toc@l([[REG1]])
56 ; CHECK: ldx {{[0-9]+}}, {{[0-9]+}}, [[REG2]]
57 ; CHECK: .section .toc
58 ; CHECK: .LC[[TOCNUM]]:
59 ; CHECK: .tc {{[a-z0-9A-Z_.]+}}[TC],{{[a-z0-9A-Z_.]+}}